If you want the full Undertale experience on Android rather than just a demake, native ports are often more stable than trying to force it through a GBA emulator:
: 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 . undertale gba download android
: Another "what-if" project that envisions Undertale as a 1980s Game Boy ROM. 2. Native Android Fan Ports (The Better Alternative) If you want the full Undertale experience on