- Activate Cheats
At the main menu or pause menu, select the 'Cheats' option. Then, enter one of the following codes to obtain the corresponding effect. Notice: Enabling codes will prevent achievements from being earned. To remove cheats, you must delete and create a new saved game file.

Effect	Code
Fourarms alien form	classic
Health regenerates	health
All characters	characters
Level select	levels
Upgrade all alien forms to maximum	upgrade
1 million DNA	cash
Energy regenerates	energy
AI does double damage and player does half damage	hard
Rath alien form	primus

- Fourarms
Successfully complete the game to unlock the Fourarms alien form.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:



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5 Points
Go Ultimate	Finish the first Ultimate Event; Overcome all of Vulcanus' minions.
Vandal	Destroy 30 breakable objects.
10 Points
Stinky Savior	Finish the Sunder Ultimate Event.
Stone Cold	Overcome the Terracotta General.
Better, Faster, Stronger!	Fully upgrade one alien.
Brawler	Overcome 100 enemies.
Power Up!	Pay 1000 on upgrades.
10 Hit Combo	Get a 10 hit combo.
Funny Business	Finish the Zombozo Ultimate Event.
Savior	Save all of the civilians in the Final Battle.
Art of War	Discover all of the Combat Bonuses.
Ultimate Echo Echo-wned	Finish the Ultimate Echo Echo event.
15 Points
Warrior	Overcome 200 enemies.
E-Knocked Out!	Finish the Catacombs level.
Torn Asunder	Finish the Eiffel Tower level.
Hunter Has Become the Hunted	Finish the Devil's Tower level.
Great Walls of Fire	Finish the Great Wall level.
Fall of Rome	Finish the Colosseum level.
Threat	Destroy 200 breakable objects.
Eye of the Storm	Finish the Final Battle level.
Rescued at What Cost?	Finish the Tokyo Nights level.
Pwned the Clones	Finish the Amazon level.
20 Points
Ultimatrix Bearer	Overcome 50 enemies as Ben Tennyson.
Thanks	Watch the entire credits.
25 Points
25 Hit Combo	Get a 25 hit combo.
Investor	Pay 10000 on upgrades.
Camera Shy!	Destroy all the security cameras in the Amazon level.
Menace	Destroy 500 breakable objects.
The Amazon Sumo Slammer!	Find all of the hidden Sumo Slammers in the Amazon.
Conqueror	Overcome 500 enemies.
The Great Wall Sumo Slammer!	Find all of the hidden Sumo Slammers in the Great Wall of China.
Immobilized	Destroy all cars within the game.
Devils Tower Sumo Slammer!	Find all of the hidden Sumo Slammers in Devil's Tower.
Eiffel Tower Sumo Slammer!	Find all of the hidden Sumo Slammers in the Eiffel Tower.
The Catacombs Sumo Slammer!	Find all of the hidden Sumo Slammers in the Catacombs.
The Final Battle Sumo Slammer!	Find all of the hidden Sumo Slammers in the Final Battle.
Tokyo Nights Sumo Slammer!	Find all of the hidden Sumo Slammers in Tokyo Nights.
The Colosseum Sumo Slammer!	Find all of the hidden Sumo Slammers in the Colosseum.
50 Points
100 Hit Combo	Get a 100 hit combo.
You Wanna Fight?	Unlock Rath as a playable character.
To the Moon	Finish the Game.
50 Hit Combo	Get a 50 hit combo.
Electric Slameroo!	Find all of the hidden Sumo Slammers in the game.
Ultimate Aliens	Fully upgrade all aliens.
Deep Pockets	Gain One Million DNA.