Masters of the Universe He-Man: Power of Grayskull ROM Download for Gameboy Advance (GBA). Masters of the Universe He-Man: Power of Grayskull game is available to play online and download only on Late Games. Masters of the Universe He-Man: Power of Grayskull 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.