From the Extras menu, select Promotions and then select the alien images outlined below to fully upgrade XLR8, Gavattack and Wildvine.
Effect | Code
|
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Gravattack | Feedback-Fourarms-Diamondhead-Bloxx
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Wildvine | Gravattack-Eye Guy-Arctiguana-Wildmutt
|
XLR8 | XLR8 - Shocksquatch-Gravattack-Arctiguana-Diamondhead
|