"Bioweapons, mostly, released by some nutjob named Weil who made old man Wily look sane by comparison." He's a bit peeved he missed out on that last fight, but he'd been busy on the front lines. There'd been plenty of fighting to go around, at the end. "For all the crap we can say about the Doc, at least he never tried to kill everyone on the planet, just take it over and kill anyone in the way."