At the main menu, select the "Cheats" option. Then, enter one of the following codes at the "Cheat" menu to activate the corresponding cheat function. Enabling codes will disable game saves.

It is recommended that you only use cheats on levels you have already played. If you complete a new level with the cheats on, you will not be able to save and must repeat the levels without using codes.

Infinite ammunition - At the "Cheat" menu, quickly press Down, Left, Up, Right, Down, Left, Up, Right, Down.

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Toot-toot! (10 points): Successfully complete the Tutorial.
Frankenbean there, done that (30 points): Complete chapter 1 - Dr Frankenbean's Castle.
Knighty-knight! (30 points): Complete chapter 2 - Camelot.
Dagnabbit! (30 points): Complete chapter 3 -Wild West.
Great Southern Land-mines! (30 points): Complete chapter 4 - Taz World.
Heavens Below! (30 points): Complete chapter 5 - A Warm Place!
Toot-and-come-in! (30 points): Complete chapter 6 - Egypt.
My Stars! (30 points): Complete chapter 7 - Mars.
War is Heck! (30 points): Complete chapter 8 - WW1.
100 Nuts & a Squirrel! (30 points): Complete chapter 9 - Wackyland.
That's All, Folks! (80 points): Complete the game.
What's Up, Doc? (20 points): Finish the First Act without collecting any Health.
Gad, how do I do it? (20 points): Beat Whack-Tastic Robot-Bash without dying.
Devilishly clever (20 points): Beat The Muddy Evil Forest without dying.
Woo-hoo-hoo Nelly! (20 points): Beat Volcano Way Out without dying.
Gold! I'm rich! (10 points): Collect 250,000 in coins.
Gold! Gold!! (20 points): Collect 500,000 in coins.
Gold! Gold!! GOLLLLD!!! (30 points): Collect 1,000,000 in coins.
Next contestant please... (10 points): Smash 100 Enemies.
Smoke-um! (20 points): Smash 200 Enemies.
Wobot season! (30 points): Smash 500 Enemies.
...Where's the "kaboom"? (20 points): Fully max out each character's Illudium.
Speedy Gonzalez! (20 points): Beat the par time for Scooterway Scramble!
'Slowpoke' Rodriguez (20 points): Beat the par time for Whack-Tastic Robot-Bash.
"Arriba! Arriba! Ándale! Ándale!" (20 points): Beat the par time for In De-Nile.
The Combo Kid! (10 points): Produce a level 6 combo.
Combo Carnage!! (20 points): Produce a level 9 combo.
Combo Loco!!! (30 points): Produce a level 12 combo.
Hello, Mah Baby! (20 points): Find the Michigan J. Frog trophy.
Eager Young Space Cadet (20 points): Find the Porky Pig trophy.
Great horny toads!!! (20 points): Find the Yosemite Sam trophy.
Super-genius!!! (20 points): Find the Wile E. Coyote trophy.
Speedipus Rex (20 points): Find the Road Runner trophy.
Bad old puddy-tat (20 points): Find the Tweety Bird trophy.
Shoot him, shoot him now! (20 points): Use every weapon.
This… Means… War… (10 points): Win a Battle.
Stupor-Duper! (20 points): Finish an act with both players wearing supersuits.
Aren't we gruesome? (20 points): Complete The Log Ness Monster in local co-op play.
Viva l'amour! Ve die togezzer. (20 points): Complete Excape of Excalibur in local co-op play.
Anyone for tennis? (20 points): Complete Low Noon in local co-op play.
Yo-yo Atom-Smashers! (20 points): Produce an atomic combo level 9 in local co-op play.
Up-and-Atom! (20 points): Produce an atomic combo level 9 online.
Just try and top this one! (10 points): Beat an Act online. You may fire when ready, grisly!
You caught Bugs' 'bug'! (20 points): Play online with someone who has Bugs' bug.