Press [ENTER] during game play, type one of the following codes, then press [ENTER] again to activate it.

Code Result

mptraitor - Traitor Mode
mpback2life - Zombie Mode
mpmeepmeep - Selected Grunt is Faster
mpohmygodtheykilledkenny - Selected Grunt Kills Instantly
mpcloakingdevice - Invisibility for Selected Grunt
mplemonbuttercremez - Bonus Level: High on Sweetz
mpyouresomoney - Bonus Level: High Rollerz
mpmakemesomepie - Bonus Level: Honey I Shrunk the Kidz
mpriorio - Bonus Level: Trouble in the Tropics

Tips:

Tip 1

Run through the training levels to figure out all of the Gruntz's capabilities.

Tip 2

Time is always of the essence; try to achieve your objectives quickly.

Tip 3

Breaking rocks will uncover secrets and power-ups.

Tip 4

Fighting enemies isn't always the best course of action; creativity is rewarded in this game