Ben 10: Omniverse Cheats for Wii U
At the 'Main' menu select the 'Promotions' option and enter one of the following codes by selecting the indicated aliens to unlock the corresponding upgrade.
Enter Gravattack, Eye Guy, Arctiguana, Wildmutt as a code.
Enter Shocksquatch, Gravattack, Arctiguana, Diamondhead as a code.
Enter Feedback, Fourarms, Diamondhead, Bloxx as a code.