Grand Theft Auto 2

Level select: Enter ITSALLUP as a player name.
All weapons: Enter NAVARONE as a player name.
Unlimited energy: Enter LIVELONG as a player name.
No police: Enter LOSEFEDS as a player name.
Maximum wanted level: Enter DESIRES as a player name.
5x multiplier: Enter HIGHFIVE as a player name.
10 million points: Enter BIGSCORE as a player name.
Display Coords: Enter WUGGLES as a player name
Tune car radio: hit the up key durring game play.
Turbo charge: (ignition) as a player name
unlimited money: (iamplaya) as player name (Information from Cheat Machine)