Forest of Illusionさんのイラストまとめ

We've preserved a prototype of the game "Indora no Hikari", developed by Kemco for the Famicom! This build is dated August 15th, 1987 (predating the game's retail release by around two months). Many thanks to Zoda-Y13 for sending this in!

We've preserved a prototype of NARC for the Nintendo Entertainment System, developed by Rare Ltd! According to the front label, this build was intended for demo purposes at CES. As for the build itself, it's uncensored and features various references to smoking and illicit drugs.

We've preserved a prototype of Kid Klown in Crazy Chase by Kemco for the SNES! Despite it being PAL, the ROM is seemingly NTSC and it contains quite a few differences of note when compared to the retail release such as a completely different title and debug functions.

We've preserved a prototype of Polaris SnoCross for the Game Boy Color, developed by Vicarious Visions! It contains a few small differences such as being able to interrupt the announcer before a race, but most interestingly, a hidden message in the header from the developers!

We've preserved a prototype of Sumikko Gurashi: Koko, Dokonan Desu? for the Nintendo 3DS, developed by Nippon Columbia! The build contains a relatively extensive debug menu which appears and can be used right upon boot-up! Many thanks to @RougeOrange_ for sending this in!

We've preserved a prototype of Primal Rage for the Sega Genesis, developed by Atari Games Corporation. Within this build the header incorrectly identifies the game as Mortal Kombat. Many thanks to Rezrospect for sending this in!

We've preserved a prototype of Micro Machines 2: Turbo Tournament. Something of note is that this cartridge only contains a single game, however it ended up releasing in a pack which included the first game titled “Micro Machines 1 and 2: Twin Turbo”.

We've preserved a prototype of Sansuu Puzzle Game: Equal Card DS, developed by Denyusha. The game was distributed elsewhere be Natsume under the title “Math Play”. The build contains multiple changes to files within the data folder as well as the sound data file.

We've preserved a European prototype of Unirally, developed by DMA Design for the Super Nintendo Entertainment System! This build is dated November 29th, 1994 (roughly two months before the game’s retail PAL release). Massive thanks to Zoda-Y13 for sending this in!

We've preserved a European prototype of Super Punch-Out!!, developed by Nintendo R&D3. It appears to be a near final build (as most PAL prototypes tend to be), however there are some sort of changes in the ROM. Said changes are currently unknown, so if you find any let us know!