Rampage: Total Destruction Cheats - PlayStation 2

Cheat Mode
Press [L2]+[R2] at the Main Menu and a password prompt will come up. Enter any one of these codes for the desired effect. These codes also work for the Gamecube version:

Disable Active Cheats - 000000
Upgrade all Monsters - 011235
One Hit Building Destroy - 071767
Demo Mode (2 Random Monsters) - 082864
All Monsters and Levels Unlocked - 141421
Display Game Version - 314159
View Ending Sequence - 667301
View Credits - 667302
Instant Demo Mode (2 Random Monsters) - 874098
Immune to Projectiles - 986960

Unlock Monsters
Amanda the Armadillo - Los Angeles, play as Kyle
Bart the Bat - Los Angeles, play as Kingston
Cal the Squid - Los Angeles, play as Kyle
Croc the Crocodile - Hong Kong, play as Rojo
Edwin the Invader - London, play as Wally
Harry the Yeti - Chicago, play as Marco
Icky the Echidna - London, play as Ralph
Jack the Jackelope - Las Vegas, play as Harry
Jill the Jellyfish - Hong Kong, play as Amanda
Joe the Wildman - New York, play as Natalie
Kingston the King Cobra - Las Vegas, play as Lizzie
Kyle the Cyclops - London, play as Kingston
Leon the Lion - Las Vegas, play as Ralph
Marco the Shark - San Francisco, play as Ralph
Natalie the Nautiless - San Francisco, play as Marco
Nick the Demon - Chicago, play as Harry
Rocky the Granite man - New York, play as Cal
Rojo the Bull - Chicago, play as Kyle
Shelby the Turtle - San Francisco, play as Lizzie
Venus the Plant - Hong Kong, play as Croc
Wally the Warthog - New York, play as Marco