Cheat Mode:
Press L2 + R2 at the main menu to display the code entry screen, then enter one of the following codes for the corresponding effect.
| All monsters and levels unlocked | 141421 |
| All levels unlocked | 271828 |
| One hit building destruction | 071767 |
| Invincible to projectiles | 986960 |
| All power upgrades | 011235 |
| Demo mode: two random monsters | 082864 |
| Instant demo: two random monsters | 874098 |
| View opening sequence | 667300 |
| View ending sequence | 667301 |
| View credits | 667302 |
| Display game version | 314159 |
| Disable all codes | 000000 |
How to 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 |
Thanks to Revolution Reader Vyark, noohes!
