Scott Mitchell invincible
Press [Start] during game play, then hold [LT] + [RT] + [Back] and slowly press [Y]x2, [X], [RB], [X], [LB].
Team invincible
Press [Start] during game play, then hold [LT] + [RT] + [Back] and slowly press [X]x2, [Y], [RB], [Y], [LB].
100% health
Press [Start] during game play, then hold [LT] + [RT] + [Back] and slowly press [LB]x2, [RB], [X], [RB], [Y].