Excuse the triple post, but no one will notice it otherwise. Just a little update. I've decided to make this the official upgrade to the 3/4 Player Replay Generator. I've got the code down, now I just have to make it user-friendly, which is the hard, time-consuming work.
Hacking replays allows you to do what you cant do in game. For instace.. I could make a Dragon Ball Z replay by hacking the replay and uppercutting Uke into the air, altering his thrust a bit so he flies up unbelievably, then suddenly appear above him in midair and punch him back into the floor, all without breaking a single one of his joints until he hits the ground and explodes.