- Activate Cheats
At the main menu, press A + Up to display the cheat entry screen. Then, enter one of the following codes to obtain the corresponding effect:

Display HUD Enter '858585' as a code.
Show monster moves Enter '411411' as a code. This is a text display of move names, underneath the HUD in game.
Hide HUD Enter '585858' as a code.
+90,000 store points Enter '031406' as a code.
Set day Enter '0829[XX]' as a code. Notice	[XX] is Day 0-based. For example, entering '082910' would take you to Day 11 of the saved game you are currently playing. This code only works after you have begined a saved game.
All bonuses Enter '204935' as a code to unlock everything.
Toggle version number Enter '787321' as a code.

- Bonus monsters
Successfully complete the indicated task to unlock the corresponding monster for purchase at the shop:


- Mothership area
Shoot down the ship in the 'Invasion' level at San Francisco. You can now select the Mothership as an area for purchase at the shop for 35,000. Alternately, play as the Alien faction. You can select the Mothership after another faction shoots down the ship.

- Alternate ending
To view an alternate ending as any of the Earth Defenders or GDF monsters, get all seven Power Surges. You will get the 'Tyrant' ending instead of the 'Hero' ending once you successfully complete Story mode.

- Mutant faction
Successfully complete Story mode to unlock the Mutant faction for purchase at the shop for 15,000.

- Easy points
Begin a two player battle in Brawl mode. You will earn as much as 1,000 points to spend in the store. This helps unlock more characters faster than playing through Story mode multiple times.