Invincibility:
Start a new game and enter B4K42 as a case-sensitive name. "God mode" will now be available at the options screen.
Level select:
Start a new game and enter !EVAH! as a case-sensitive name.
All bonuses:
Start a new game and enter 105770Y2 as a case-sensitive name. And those are zeros, not capital 'o'-s.
NOTE: You can combine these codes if you wish, for example, entering B4K42!EVAH! as a profile name would start a game with both invincibility and level select enabled.
