Mega Man Battle Network 6: Cybeast Gregar ROM Download for Gameboy Advance (GBA). Mega Man Battle Network 6: Cybeast Gregar game is available to play online and download only on Roms Games. Mega Man Battle Network 6: Cybeast Gregar ROM for Gameboy Advance download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.