Beat the Game
To beat the game, enter the password CDERT TYYUGH.
To start at the Asteroid Belt with all but one gem (the Mind Gem), enter the password XLMYL C@8TX.
Note: Spiderman will be at half-life if you use this password.
Be sure to heal him ASAP.
Soul Gem Password
To get the soul gem and beat some levels type in R9LXJ AA3WA at the password screen.