Marvel Nemesis: Rise of the Imperfects Q&A

my brother lost every character on this game. is there a cheat that will make him have all the characters back???

i cant beat paragons mission number three.

if you own spiderman 3 go to cheatsguru and search for spiderman 3 for ps2. there's this guy who has a good cheat for a cheat menu I think it works ns(not sure) anyways go check it out

I am stuck on Magneto's 1'st mission any hints or tips?
please help