Pokémon Gold and Silver Spaceworld '97 demo

Pokémon Gold demo;
	; Title screen of the Pokémon Gold demo
Pokémon Silver demo;
	; Title screen of the Pokémon Silver demo
Basic info
Platform:	Game Boy (enhanced for the Super Game Boy)
Category:	RPG demo
Players:	1 player
Connectivity:	None
Developer:	Game Freak
Publisher:	Nintendo/The Pokémon Company
Part of:	Generation II
Ratings
CERO:	N/A
ESRB:	N/A
ACB:	N/A
OFLC:	N/A
PEGI:	N/A
GRAC:	N/A
GSRR:	N/A
Release dates
Japan:	November 21, 1997
North America:	N/A
Australia:	N/A
Europe:	N/A
South Korea:	N/A
Hong Kong:	N/A
Taiwan:	N/A
Websites
Japanese:	Space World
English:	N/A

It has been suggested that this article be moved to Pokémon Gold and Silver Space World '97 demo or Pokémon Gold and Silver SpaceWorld '97 demo.
Please discuss whether or not to move it on its talk page.

The Pokémon Gold and Silver Spaceworld '97 demo is an early build of the games Pokémon Gold and Silver that was shown at Nintendo Space World '97 from November 21 to 23, 1997. At the time, the final game was estimated to be about 80% complete and was set to be released for the original Game Boy—the Game Boy Color would not be announced until late March of the following year.^[1]^[2] However, due to a variety of delays, including a complete overhaul to the game, it would not be released until late 1999.

During the two years after it was first shown at Nintendo Space World '97 until its final release on November 21, 1999, the game changed extensively from this early demo. As with the final games, the demo used the Japanese Pokémon Blue as its basis for development.

Up until 2018, little information was known about this demo, due to the majority of the game being locked off from players. Only a few photographs were taken and most of the information known at the time came from the testimony of attendees. On May 26, 2018, however, ROM files of both the Gold and Silver demos were anonymously posted online, including versions with debug menus, allowing players to explore data that was blocked off at Space World.

Beyond what was intended to be played appears unfinished: many Pokémon have unfinished and placeholder base stats, especially in Special Defense; scripts for events and NPC dialogue are completely absent, collision data is unfinished, and some areas, usually dungeons, are completely missing. Nevertheless, a large amount of information can be gathered from what is present, including many redesigned or scrapped Pokémon designs, minigame Easter eggs, and a completely different region. Additionally, the NPCs that remain give some implications for the original story; for example, an Imposter Professor Oak-like NPC can be seen in "High-Tech".

Gameplay

The demo begins with a monologue from Professor Oak, similar to the final game. However, there is no option to give the player a gender or a name, who is instead automatically a boy named Satoshi (サトシ)^G or Shigeru (シゲル)^S. Afterwards, the player begins in his room in a town called Silent Hill (サイレントヒル); this town is also named Silent Hills (サイレントヒルズ) in the Official Fan Book of Pocket Monsters (Japanese: ポケットモンスター公式ファンブック), published earlier in 1997. The player will already have 3000$ and eight Badges, although the Gym Leaders are blacked out. One of three first partner Pokémon, randomly chosen, is already placed in the player's party.

Type:
Grass	Unknown

Held item:

None

ハッパ Lv.8

	--
	--

Type:
Fire	Unknown

Held item:

None

ホノオグマ Lv.8

	--
	--

	--
	--

Type:
Water	Unknown

Held item:

None

クルス Lv.8

	--
	--

The player's Bag initially has the following items:

5 Poké Balls
10 Potions
10 Full Heals
1 (Japanese: きあいだま Fighting Spirit Orb), an early iteration of the Focus Band, which occupies the same slot as in the final game.
1 (Japanese: しげきだま Stimulus Orb). It is an item that prevents the holding Pokémon from falling asleep, but it is not consumed upon use. It was dummied out in the final game as Teru-sama.

Silent Hill has exits to the west, north, and east; however, the northern and eastern exits are blocked to prevent the player from accessing unfinished areas. A Pokémon Center which the player can enter is present in the town, but all of its functions are unavailable. Silent Hill also has a laboratory, but it cannot be entered.

The player will then move west to Route 1, a typical route with a dungeon called Silent Hill (しずかなおか) in the middle. (Although the English translations for both サイレントヒルズ and しずかなおか are the same, they are written differently in Japanese: the town is a transliteration of the English term "Silent Hill" in katakana, and the dungeon area in Route 1 is the Japanese native translation for "Silent Hill," written in hiragana.) Silent Hill has the first Trainers to encounter in the game. They can only be challenged by directly talking to them, and won't have any dialogue when they lose. While prize money is given out, and one Beauty has a Meowth that knows Pay Day, there is no way to spend money in the demo. After going through Silent Hill, the player reemerges on the other side of Route 1, where they will encounter another trainer. At the end of Route 1, the rival, automatically named Shigeru (シゲル), stops the player, and the demo ends. The demo will also end if the player blacks out.

Differences from the final game

The demo and the final versions of the Generation II games had numerous differences.

Morning
Day
Night

The demo was meant to be played on Game Boy hardware and was not designed to take advantage of the colors available on a Game Boy Color; as such, the colors available through the Super Game Boy were less detailed. The day and night system is present, but due to running on a Game Boy color scheme, the change in colors for the time of the day are just shades of blue. Playing the final games on a Super Game Boy yields a similar effect.

The intro lacks music, and instead of showing the Generation II first partner Pokémon at the end of the intro, Venusaur and Blastoise are shown instead; Charizard, which was present in the final game's intro, has a slightly less detailed design.

Generation I Pokédex entries were carried over as placeholders for Pokémon until new Pokédex entries were able to be written for them. All Pokédex entries for Generation II Pokémon use the same placeholder text:「はっけんされた　ばかりの　ポケモン　げんざい　ちょうさちゅう。」 In an odd occurrence, it was also possible to battle wild Pokémon twice in a row without moving from a grass panel; why this was an implemented feature at the time is unknown.

Kanto Route 1 music plays for all Routes. The music of Viridian City, Saffron City, and Pewter City plays for all cities and towns present. Trainer and wild Pokémon battles both use Pokémon Red and Green Gym Leader music. More tracks from Pokémon Red and Green are present for events that are not normally possible in this build.

Type chart

Several type match ups differed from the final version of the game. Notably, Normal and Dark would be super effective against Dark types, while Normal types would only take resisted damage from Dark-type moves, Water and Electric would have been super effective against Metal, and Poison would be resisted by the Metal type instead of Poison type moves doing no damage. Additionally, Bug and Poison remained super effective against each other, something that existed in Generation I, but was changed to Poison dealing neutral damage to Bug and Bug being resisted by Poison in the final version. Ghost and Dark would both deal neutral damage against Metal (like Generation VI onwards) instead of Metal resisting both types.

In the below type chart, bold text and a different shade of the color means that the type matchup is different than in the final version.

×	Defending type
×
Attacking type	1×	1×	1×	1×	1×	½×	1×	0×	1×	1×	1×	1×	1×	1×	1×	1×	2×
	2×	1×	½×	½×	1×	2×	½×	0×	½×	1×	1×	1×	1×	½×	2×	1×	1×
	1×	2×	1×	1×	1×	½×	2×	1×	1×	1×	1×	2×	½×	1×	1×	1×	1×
	1×	1×	1×	½×	½×	½×	2×	½×	½×	1×	1×	2×	1×	1×	1×	1×	1×
	1×	1×	0×	2×	1×	2×	½×	1×	1×	2×	1×	½×	2×	1×	1×	1×	1×
	1×	½×	2×	1×	½×	1×	2×	1×	½×	2×	1×	1×	1×	1×	2×	1×	1×
	1×	½×	½×	2×	1×	1×	1×	½×	1×	½×	1×	2×	1×	2×	1×	1×	2×
	0×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	2×	1×	1×	½×
	1×	1×	1×	1×	1×	2×	1×	1×	0×	1×	½×	1×	½×	1×	1×	1×	1×
	1×	1×	1×	1×	1×	½×	2×	1×	1×	½×	½×	2×	1×	1×	2×	½×	1×
	1×	1×	1×	1×	2×	2×	1×	1×	2×	2×	½×	½×	½×	1×	1×	½×	1×
	1×	1×	½×	½×	2×	2×	½×	1×	1×	½×	2×	½×	1×	1×	1×	½×	1×
	1×	1×	2×	1×	0×	1×	1×	1×	2×	1×	2×	½×	½×	1×	1×	½×	1×
	1×	2×	1×	2×	1×	1×	1×	1×	1×	1×	1×	1×	1×	½×	1×	1×	½×
	1×	1×	2×	1×	2×	1×	1×	1×	1×	½×	½×	2×	1×	1×	½×	2×	1×
	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	1×	2×	1×
	½×	1×	1×	1×	1×	1×	1×	2×	1×	1×	1×	1×	1×	2×	1×	1×	2×
These matchups are suitable for the Gold and Silver Spaceworld '97 demo.

Demo restrictions

As this game was meant to be publicly played at Space World '97, there were several restrictions put in place to make sure the game could not lock up or be set up to not work for other players. The only options available at the start screen are "ポケモンをあそぶ" (Play Pokémon) and "せっていをかえる" (Change Settings). There is no Continue option as the player is not able to save in the demo build. The player is given a random level 8 first partner Pokémon.

The player could only heal using Potions as Pokémon Centers are not accessible in the demo. PCs are also not able to be used. Trying to visit a Pokémon Center or use a PC gives the text of "under repair" or "being adjusted." While prize money is given out, and one Beauty has a Meowth that knows Pay Day, there is no way to spend money in the demo. This was likely to prevent a single attendee from hogging the demo by repeatedly healing to avoid blacking out.

The player and rival's names are random pre-selected names. First partner Pokémon and wild Pokémon that appear in the demo are not able to evolve. The player can only challenge NPCs by talking to them directly. When an NPC loses, they do not have any losing dialog, presumably to make the demo faster to play. The player can only visit Silent Hill and early routes up to the forest area. When all the player's Pokémon faint, the game returns to the title screen to ensure the next person could have a turn.

Pokémon

Main article: Pokémon Gold and Silver Spaceworld '97 demo/Pokémon

Although only a few new Pokémon can be seen in the demo through normal gameplay, 100 new Pokémon had been designed at the time. Some of these Pokémon were kept into the final release largely unchanged; some had major modifications; others went completely unused. 16 of the unused Pokémon were related to the original 151 Generation I Pokémon, and two of the unused Pokémon were related to Generation II Pokémon which made it into the final release.

Many of the 151 Generation I Pokémon still used their sprites from Pokémon Blue as placeholder sprites during this time. Several Pokémon would have also gained either an Evolution or a pre-Evolution. Certain scrapped Pokémon correspond to, and may have inspired, later-generation Pokémon such as Leafeon or Lickilicky.

Many new Pokémon that were unused in the demo had placeholder base stats, which were all 50.

List of new Pokémon

Ndex	Pokémon	Type
#152	Happa	Grass
#153	Hanamogura	Grass
#154	Hanaryū	Grass
#155	Honōguma	Fire
#156	Borubeā	Fire
#157	Dainabea	Fire
#158	Kurusu	Water
#159	Akua	Water
#160	Akueria	Water
#161	Hōhō	Flying
#162	Bōbō	Flying
#163	Pachimē	Electric
#164	Mokoko	Electric
#165	Denryū	Electric
#166	Mikon	Water
#167	Monja	Grass
#168	Jaranra	Grass
#169	Hanēi	Water	Flying
#170	Pukū	Water
#171	Shibirefugu	Water
#172	Pichū	Electric
#173	Py	Normal
#174	Pupurin	Normal
#175	Mizūo	Water
#176	Neiti	Flying	Psychic
#177	Neitio	Flying	Psychic
#178	Gyopin	Water
#179	Mariru	Water
#180	Manbō1	Water
#181	Ikari	Water	Metal
#182	Gurotesu	Water	Metal
#183	Ekushingu	Poison	Flying
#184	Para	Bug
#185	Kokumo	Bug	Poison
#186	Tsūheddo	Bug	Poison
#187	Yoroidori	Flying	Metal
#188	Animon	Normal
#189	Hināzu	Normal	Flying
#190	Sanī	Grass	Psychic
#191	Paon	Ground
#192	Donfan	Ground
#193	Tsuinzu	Dark	Normal
#194	Kirinriki	Dark	Normal
#195	Peintā	Normal
#196	Kōnya	Normal
#197	Rinrin	Dark
#198	Berurun	Dark
#199	Nyorotono	Water
#200	Yadokingu	Water	Psychic
#201	Annōn	Normal
#202	Rediba	Bug	Flying
#203	Mitsuboshi	Bug	Flying
#204	Puchikōn	Normal
#205	Ēfi	Psychic
#206	Burakkī	Poison
#207	Tāban	Water
#208	Betobebī	Poison
#209	Teppouo	Water
#210	Okutan	Water
#211	Gongu	Fighting
#212	Kapoerā	Fighting
#213	Pudi	Fire
#214	Haneko	Grass	Flying
#215	Poponeko	Grass	Flying
#216	Wataneko	Grass	Flying
#217	Baririna	Normal
#218	Rippu	Ice
#219	Erebebī	Electric
#220	Bubyi	Fire
#221	Kireihana	Grass	Poison
#222	Tsubomitto	Grass	Poison
#223	Mirutanku	Normal
#224	Bomushikā	Water	Fire
#225	Gifuto	Water	Ice
#226	Kotora	Electric
#227	Raitora	Electric
#228	Madāmu	Normal	Flying
#229	Norowara	Ghost
#230	Kyonpan	Ghost
#231	Yamikarasu	Dark	Flying
#232	Happī	Normal
#233	Shizāsu	Bug	Flying
#234	Purakkusu	Bug
#235	Debiru	Fire
#236	Herugā	Fire
#237	Urufuman	Ice
#238	Wāurufu	Ice
#239	Porigon2	Normal
#240	Namēru	Normal
#241	Haganēru	Metal	Ground
#242	Kingudora	Dragon	Water
#243	Rai	Electric
#244	En	Fire
#245	Sui	Water
#246	Nyūra	Dark
#247	Houou	Flying
#248	Togepī	Normal
#249	Bulu	Psychic
#250	Teiru	Normal
#251	Rīfi	Grass

Special entry animations

Pikachu and Sanī used the special "stars" animation, which would be later used for Shiny Pokémon. However, this demo lacked a special animation linked to Shininess.^[3]

Hōhō used a special "fade-in" animation, which remains in the final games, but is unused.

There was also a special "wave" animation, which was unused even in the demo.

Shiny Pokémon

Shiny Pokémon had much different mechanics than in the final games. Instead of exact DV requirements (Defense, Speed and Special DVs at 10, and Attack DV of 2, 3, 6, 7, 10, 11, 14 or 15), all Shiny Pokémon had DVs of 10 or higher for all stats other than HP, which translates to Shininess odds of 81/4096, or ~1.977%. Shiny Pokémon had no special star animation when sent out, although that animation is implemented in-game. For some reason, it only applies to non-Shiny Pikachu and Sanī.

Due to technical limitations caused by the Super Game Boy's hardware, each color palette also had an assigned Shiny palette. Thus, all Pokémon with a given color palette also had the same Shiny palette.

Color	Standard palette				Shiny palette
Green	#E7E7E7	#A7D787	#4FA75F	#272727	#E7E7E7	#BFAF87	#676757	#272727
Orange	#E7E7E7	#FFA757	#D75737	#272727	#E7E7E7	#B77F87	#8F172F	#272727
Cyan	#E7E7E7	#AFCFEF	#779FCF	#272727	#E7E7E7	#7FA7A7	#2F8787	#272727
Brown	#E7E7E7	#E7A77F	#AF774F	#272727	#E7E7E7	#A78F97	#976F5F	#272727
Yellow	#E7E7E7	#FFE777	#D7A707	#272727	#E7E7E7	#D7BF87	#EF774F	#272727
Blue	#E7E7E7	#97A7DF	#5F7FBF	#272727	#E7E7E7	#8797AF	#576797	#272727
Purple	#E7E7E7	#DFB7C7	#AF7FBF	#272727	#E7E7E7	#BF7F9F	#772767	#272727
Human	#E7E7E7	#F7B78F	#87779F	#272727	#E7E7E7	#BF9F6F	#77678F	#272727
Faded	#E7E7E7	#D7AFB7	#7F7F97	#272727	#E7E7E7	#979797	#575757	#272727
Pink	#E7E7E7	#F7B7C7	#E77FAF	#272727	#E7E7E7	#AFCFEF	#F7B7C7	#272727

Trainer Classes

This article is missing one or more images.
Please feel free to add any missing images to this article. Needed images can be uploaded to the Bulbagarden Archives.
Reason: Overworld sprites for all Trainer classes

In the demo, the majority of trainer classes present would go on to be unused or have drastic character redesigns when compared to the final game. In this build, the Gym Leader "classes" work just like in Generation I, with each entry only being the character's name. In the final release they're all just known as Gym Leader, with their name added after it.

Trainer Classes

Trainer # (Hex)	Class (Demo)	Class (Final)	Overworld (Demo)	Overworld (Final)	Battle (Demo)	Battle (Final)	Notes
01	ハヤト Hayato	ジムリーダー Gym Leader					The first Gym Leader, Falkner, has a different design. Leader of Old's Gym.
02	アカネ Akane	ジムリーダー Gym Leader					The second Gym Leader, Whitney, uses a placeholder sprite and reuses a copy of Bugsy's overworld sprites, though Whitney also is listed as the second Gym Leader internally in the final. West's Gym has Bugsy as the leader, meaning he may have already been decided as the second leader at an earlier point. It is unknown where she would have been battled, though a female Gym Leader can be found in High-Tech's Gym.
03	ツクシ Tsukushi	ジムリーダー Gym Leader					The third Gym Leader, Bugsy, has a different design. Can be found in West's Gym.
04	エノキ Enoki	ジムリーダー Gym Leader					The fourth Gym Leader, Morty, has a different design. Overworld sprites depict him with a ponytail, though this is never used in the demo. It is unknown where he would have been battled, though the Birdon Gym features pitfalls much like Morty's in the final game and is also the fourth city with a Gym, suggesting that he may have still been the fourth leader. Enoki was the name given to Morty in Ken Sugimori's early conceptual sketches for the characters.^[4] It seems to originate from the Japanese name of the Chinese hackberry, often referenced in folklore surrounding the ghostly light Kitsunebi, a kind of Will-o'-the-wisp.
05	オケラ Okera	ジムリーダー Gym Leader		N/A		N/A	The fifth Gym Leader, seemingly related to Pryce. Uses a placeholder sprite and reuses a copy of Jasmine's overworld sprites. The name Okera was Pryce's name early in development,^[5] with this class sharing the same ID of Pryce in the final game. It is unknown where he would have been battled, though Newtype would be the next Gym after Birdon and contains a male leader.
06	ミカン Mikan	ジムリーダー Gym Leader					The sixth Gym Leader, Jasmine, has a different design. Her overworld sprites go unused in the demo, so it is unknown where she would have been battled, since the gym in Blue Forest appeared to be a Ghost gym. It may suggest that Jasmine was originally a Ghost-type leader, or that the map was based on an even earlier arrangement of leaders.
07	ブルー Blue	ジムリーダー Gym Leader		N/A		N/A	The seventh Gym Leader, seemingly Red. Uses a placeholder sprite, with an overworld sprite of Red being in the Kanto Gym. ブルー is the default name for the player in Pokémon Blue. This does not refer to the rival character Blue, who is known as Green in Japan. It is unknown where he would have been battled, though the aforementioned Kanto Gym appears to be most likely, a role ironically fulfilled by the rival character Blue in the final game. This slot was given to Chuck in the final version.
08	ガマ Gama	ジムリーダー Gym Leader		N/A		N/A	The eighth Gym Leader, uses a placeholder sprite. Gama may come from the Japanese name of the common cattail of the genus Typha, which is named after Typhon—a serpentine giant in Greek mythology. It is unknown where they would have been battled, though due to their placement as the final Gym Leader, this may be an early iteration of Clair, who uses Pokémon that fit a similar description in the final game, such as Dragonair and Gyarados. There is a Gym in Stand, but it is just a placeholder.
09	ライバル Rival	ライバル Rival					This Trainer class doesn't use the class name, just the name assigned to it.
0A	オーキドはかせ Professor Oak	ポケモンはかせ Pokémon Professor					The name is different in the final version.
0B	サカキ Sakaki	してんのう The Big Four				N/A	Giovanni, uses a placeholder sprite. In the demo, Giovanni is found in the Radio Tower in West, meaning he was planned to be encountered there. Giovanni is absent from the final version, and this slot was given to Will.
0C	しゅじんこう Protagonist	ポケモントレーナー Pokémon Trainer					This Trainer class doesn't use the class name, just the name assigned to it. The name is different in the final version.
0D	シバ Siba	してんのう The Big Four					Bruno, uses a placeholder sprite that appears to look like Kurt, which had a sprite even in the Pokémon Gold and Silver Spaceworld '99 demo before the idea of Kurt as a Trainer was dropped.
0E	カスミ Kasumi	してんのう The Big Four					Misty, uses a placeholder sprite. Due to how this section of Trainers was shuffled around, Misty was probably not intended to be an Elite Four member. Misty's entry ended up being moved to 0x12, and this ID spot was given to Karen.
0F	カンナ Kanna	してんのう The Big Four				N/A	Lorelei, uses a placeholder sprite. This character doesn't exist in the final version, and this slot was given to Koga.
10	ワタル Wataru	チャンピオン Champion					Lance, uses a placeholder sprite. It is unknown if Lance was intended to be the Champion at that time.
11	ゲルゲだんいん♂ Geruge Member♂	ジムリーダー Gym Leader				N/A	The unused Geruge Member Trainer class, which has a clone at index 0x3E. Both versions use a placeholder sprite. Geruge (Japanese: ゲルゲトショッキングセンター Gerugeto Shocking Center, ゲルゲ Geruge for short) was a popular Japanese radio show that hosted various Japanese celebrities. They would likely be found in the Radio Tower. This slot was given to Brock in the final version.
12	さんにんしゅう Trio	ジムリーダー Gym Leader				N/A	The unused Trio Trainer class, which uses a placeholder sprite. They may have inspired the Wise Trio in Pokémon Crystal. This slot was given to Misty in the final version.
13	さんにんしゅう Trio	ジムリーダー Gym Leader				N/A	This slot was given to Lt. Surge in the final version.
14	さんにんしゅう Trio	はぐれけんきゅういん Researcher Gone Astray				N/A	This slot was given to the Scientist class in the final version.
15	ロケットだんいん♀ Rocket Member♀	ジムリーダー Gym Leader					The female Team Rocket Grunt class, which uses a placeholder sprite. This class was moved to 0x42 in the final version, and this slot was given to Erika.
16	たんパンこぞう Shorts Youngster	たんパンこぞう Shorts Youngster					The Youngster class, who had a different design.
17	じゅくがえり Coming Home from Cram School	じゅくがえり Coming Home from Cram School					The Schoolboy class.
18	ひよっこ Fledgling	とりつかい Bird Tamer				N/A	An unused Trainer class that was meant for beginning Trainers. It had similarities to the Preschooler class in later generations. Suggesting by the name that could be taken to mean "chick" or "fledgling", but also "novice" or "rookie", this may have had ties with the Bird Keeper class by being a child version of it, much like Lasses grow up to be Beauties. Coincidentally, this slot was given to the Bird Keeper class in the final version.
19	ミニスカート Miniskirt	ミニスカート Miniskirt					The Lass class. The sprite is similar to the final, but with the appearance of a Generation I Lass.
1A	てんさい Genius	ジムリーダー Gym Leader				N/A	The unused Genius class, uses a placeholder sprite. This slot was given to Janine in the final version.
1B	プロフェッショナル♂ Professional♂	エリートトレーナー Elite Trainer					The unused Professional class, meant as a replacement to the Cooltrainer class. Has a whip, like Generation I Cooltrainers.
1C	プロフェッショナル♀ Professional♀	エリートトレーナー Elite Trainer					The unused Professional class, meant as a replacement to the Cooltrainer class. Has a whip, like Generation I Cooltrainers.
1D	おとなのおねえさん Grown-Up Woman	おとなのおねえさん Grown-Up Woman					The Beauty class. The sprite is similar to the final, but with the appearance of a Generation I Beauty.
1E	かいじゅうマニア Monster Maniac	かいじゅうマニア Monster Maniac					The Poké Maniac class. The sprite is similar to the final, but wears a lab coat like Generation I Poké Maniacs.
1F	ロケットだんいん♂ Rocket Member♂	ロケットだんいん Rocket Member					The male Team Rocket Grunt class. The sprite is similar to the final, but has a whip like Generation I Team Rocket Grunts.
20	ジェントルマン Gentleman	ジェントルマン Gentleman					The Gentleman class, uses a placeholder sprite.
21	せんせい♂ Teacher♂	スキーヤー Skier				N/A	The male Teacher class. As seen on an unused team from the Spaceworld '99 demo, this Trainer class would focus on masculine Pokémon like Machop. This slot was given to the Skier class in the final version, and male Teachers have never been seen since.
22	せんせい♀ Teacher♀	せんせい Teacher					The female Teacher class. She drops the gender symbol in the final release.
23	とっちゃんぼうや Manchild	ジムリーダー Gym Leader				N/A	Uses a placeholder sprite. The name suggests it was probably a prototype of the Pokéfan class. This slot was given to Sabrina in the final version.
24	むしとりしょうねん Bug Catcher Boy	むしとり Bug Catcher					The Bug Catcher class, has a different name in the final version.
25	つりびと Fisher	つりびと Fisher					The Fisher class. Has a cigarette, referencing the common Japanese stereotype of smoking fishermen. It can be seen on the final sprite, but was removed in the localizations.
26	かいパンやろう Swimsuit Guy	かいパンやろう Swimsuit Guy					The male Swimmer class.
27	ビキニのおねえさん Bikini Lady	ビキニのおねえさん Bikini Lady					The female Swimmer class. She winks, which can be seen on the final sprite, but was removed in the localizations.
28	ふなのり Sailor	ふなのり Sailor					The Sailor class, uses a placeholder sprite.
29	りかけいのおとこ Science Man	りかけいのおとこ Science Man					The Super Nerd class.
2A	でんきやのオヤジ Old Man Electrician	ライバル Rival				N/A	The Engineer class, has a unique sprite. Was intended to return in Generation II. This slot was given to Silver in the final version, used only for the battle in Mt. Moon.
2B	でんきグループ Electric Group	ギタリスト Guitarist				N/A	The Rocker class, uses a placeholder sprite. Was intended to return in Generation II. This slot was given to the Guitarist class in the final version.
2C	やまおとこ Mountaineer	やまおとこ Mountaineer					The Hiker class, uses a placeholder sprite.
2D	ぼうそうぞく Wild-Riding Gang	ぼうそうぞく Wild-Riding Gang					The Biker class.
2E	ロッククライマー Rock Climber	ジムリーダー Gym Leader				N/A	The unused Rock Climber class, uses a placeholder sprite. May have had ties with the Hiker class. This slot was given to Blaine in the final version.
2F	かじばドロボウ Post-Fire Burglar	かじばドロボウ Post-Fire Burglar					The Burglar class. The sprite is similar to the final, but has an outfit similar to Generation I Burglars.
30	ひふきやろう Fire-Breathing Guy	ひふきやろう Fire-Breathing Guy					The Firebreather class.
31	ジプシージャグラー Gypsy Juggler	ジプシージャグラー Gypsy Juggler					The Juggler class.
32	からておう Karate King	からておう Karate King					The Blackbelt class.
33	スポーツマン Sportsman	ロケットだんいん Rocket Member				N/A	The unused Sportsman class. As seen on an unused team from the Spaceworld '99 demo, this Trainer class would focus on speedy Pokémon like Doduo. It may have therefore given inspiration for the running Triathlete or Jogger Trainer classes. This slot was given to the male Rocket Executive class in the final version.
34	ちょうのうりょくしゃ Extrasensory Perception User	サイキッカー Psychicer					The Psychic class, uses a placeholder sprite. Has a different title in the demo, only to be reverted to the Generation I title in the final version.
35	カンフーマスター Kung Fu Master	ピクニックガール Picnic Girl				N/A	The unused Kung Fu Master class, uses a placeholder sprite. May have had ties to the Black Belt class. This slot was given to the Picnicker class in the final version.
36	うらないし Fortune Teller	キャンプボーイ Camp Boy				N/A	The unused Fortune Teller class, uses a placeholder sprite. May have had ties to the Psychic class. This slot was given to the Camper class in the final version.
37	ふりょう Hooligan	ロケットだんいん Rocket Member				N/A	The unused Hooligan class, uses a placeholder sprite. It uses overworld sprites that went completely unused in the demo, resembling classical Japanese delinquents. May have inspired the Punk Guy, Punk Girl, Street Thug, or Delinquent classes in later games. This slot was given to the female Rocket Executive class in the final version.
38	ぼうず Monk	ぼうず Monk					The Sage class, uses a placeholder sprite.
39	イタコ Itako	イタコ Itako					The Medium class. Has Buddhist prayer beads, which can be seen on the final sprite, but were removed in the localizations, per Nintendo's policy on religious references.
3A	へいし Soldier	ボーダー Boarder				N/A	The unused Soldier class. It is unknown what kinds of Pokémon he would use. This slot was given to the Boarder class in the final version.
3B	ゲルゲだんいん♀ Geruge Member♀	だいすきクラブ Fan Club				N/A	The unused female Geruge Member class. This slot was given to the male Pokéfan class in the final version.
3C	まいこはん Dancing Girl	まいこはん Dancing Girl					The Kimono Girl class. The sprite was mirrored in the final version.
3D	ふたごちゃん Twins	ふたごちゃん Twins					The Twins class.
3E	ゲルゲだんいん♂ Geruge Member♂	だいすきクラブ Fan Club				N/A	The unused male Geruge Member class. Clone of the class at 0x11, but uses a different sprite. This slot was given to the female Pokéfan class in the final version.
3F	してんのう♂ The Big Four♂	ポケモントレーナー Pokémon Trainer				N/A	The Elite Four class, has a placeholder sprite and a gender symbol. This slot was given to Red in the final version.
40	してんのう♀ The Big Four♀	ジムリーダー Gym Leader				N/A	The Elite Four class, has a placeholder sprite and a gender symbol. This slot was given to Blue in the final version.
41	—	おまわりさん Police Officer	N/A		N/A		Absent from the demo. The Officer class was added in early 1998.
42	—	ロケットだんいん Rocket Member	N/A		N/A		Absent from the demo. This slot was given to the female Team Rocket Grunt class.

Maps

Main article: Pokémon Gold and Silver Spaceworld '97 demo/Locations

Although only Silent Hill and the route and forest leading from it to Old City are accessible in the demo, an almost fully mapped, albeit unpolished region is visible. However, the inaccessible locations use an outdated form of collision that makes areas inaccessible without debug mode; most notably, grass tiles are often treated as walls. Warps data is functional and all accessible houses feature NPCs, though dungeon maps are completely unused and the Pokémon League equivalent is nonexistent. No Trainer battles exist beyond the demo area, but a scant few areas have wild Pokémon, featuring some prototype Pokémon, averaging around level 30.

The final map of Johto bears little resemblance to the region present in the demo, which was based on the entirety of Japan, with Kanto included as a large city within it. Apart from Kanto and a prototype of the Ruins of Alph, none of the areas from the final game appear in the demo; however, some maps bear similarities.

Mini-games

This build of the game contained far more mini-games, with a total of 5.

Title screen

A hidden mini-game involving Pikachu can be played if the game is left idle at the title screen for an extended period of time. The player tries to avoid obstacles and collect musical notes while catching up to Jigglypuff. The game ends once Pikachu catches up to Jigglypuff and returns to the title screen. After playing, the title screen will have musical notes flying across the screen, rather than fire.

Alternate title screen for Gold
Alternate title screen for Silver

Picross

A Picross mini-game featuring four unique Pokémon nonogram puzzles was present, featuring Diglett, Snorlax, Gengar, and an Unown.

Some Pokémon nonogram puzzles would later appear in Picross NP Vol. 1. Pokémon Picross would also be announced for the Game Boy Color; however, it was ultimately cancelled. A dedicated Pokémon Picross game would not be released until Pokémon Picross for the Nintendo 3DS released in December 2015.

Poker

The poker mini-game was based on the real-life game of poker but with various Pokémon on the cards instead of clubs, diamonds, hearts, and spades. It would be replaced with card flip in the final version of the game.

Memory game

A memory game is a game where the player attempts to match five pairs of cards in five turns. However, no coins are actually rewarded for any matches. This game remains unused in the final game.

Slide puzzle

The last mini-game is a 15-tile slide puzzle game where the player has to try rearranging the tiles to reveal who the Pokémon is.

Gallery

The Game Boy mode variant of the Pokémon Silver demo loads a very similar albeit distinct boot ROM palette to the one used by Pokémon Green.

Game Boy Color

Game Boy mode, main	Game Boy mode, main	Game Boy mode, alternate	Game Boy mode, alternate

Super Game Boy

The Super Game Boy borders can be switched by pressing SELECT in the Options screen.

final border, main	final border, main	final border, alternate	final border, alternate

demo-only border, main	demo-only border, main	demo-only border, alternate	demo-only border, alternate

In-game screenshots

Title screen mini-game
Picross
Poker
Memory game
Slide puzzle

Items

Main article: Pokémon Gold and Silver Spaceworld '97 demo/Items

With the introduction of held items, many new items and Key Items were added that would be cut, have slight changes in how they worked, or be scrapped altogether.