Since years having working with Dr. Light but never being praised like his former friend, he grew jealous of him and to show the world his genius as a scientist he first modified six Robot Masters which would be defeated by MegaMan along with his last weapon. Since then from time to time he plans new schemes from building and/or corrupting multiple Robot Masters to attempt to take over the world finally being imprisoned and escaping from time to time until he would then work on his final creation, and apparently dying from aging.