Kettou Beast Wars - Beast Senshi Saikyou Ketteisen ROM Download for Gameboy Color (GBC). Kettou Beast Wars - Beast Senshi Saikyou Ketteisen game is available to play online and download only on Roms Games. Kettou Beast Wars - Beast Senshi Saikyou Ketteisen ROM for Gameboy Color download requires an emulator to play the game offline. This Game is Japanese Version and is the highest quality available.