How do you play as goop in the psp version of ben 10 alien force?

· Cheat mode At the "Bonus Content" menu, select the "Enter Code" option. Enter one of the following codes at the "Secret Cheat" screen to unlock the corresponding cheat option. Then, enable the unlocked cheat at the "Secrets" menu.

Invincibility Enter Kevin, Big Chill, Swampfire, Kevin as a code. Infinite Aliens Enter Ben, Swampfire, Gwen, Big Chill as a code. All combos Enter Swampfire, Gwen, Kevin, Ben as a code to unlock all combos. Level Lord Enter Gwen, Kevin, Big Chill, Gwen as a code. Goop

Enter Ben, Gwen, Kevin, Big Chill as a code. Alternately, enter Ben, Swampfire, Kevin, Big Chill as a code.