: A faithful demake of the Undertale Demo for the Game Boy Color. It features turn-based combat and exploration. Since it is a .gbc file, you can download the ROM from sites like itch.io and run it on Android using a Game Boy emulator like My OldBoy! or RetroArch .
As the game's popularity grew, fans began to clamor for a release on the Game Boy Advance (GBA) and, more importantly, Android devices. But, to everyone's surprise, Undertale's creator, Toby Fox, wasn't interested in developing a GBA version. The game's original code was written in a custom scripting language, and porting it to the GBA would have been a significant undertaking. undertale gba download android