Nicktoons: Attack of the Toybots (Nintendo DS)
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El Tigre
Finish "Pupununu Village".
GIR
Collect all of the character portraits.
Invader Zim
Finish "Retroville".
Jenny
Finish "Amity Park".
Mr. Blik
Finish "Fairy World".
Patrick
Finish "Bikini Bottom".
Unlocks Danny Phantom
Enter these at the "Unlock Code" screen in the "Options" menu: Tak, Jimmy, Zim, El Tigre.
Unlocks Spongebob
Enter these at the "Unlock Code" screen in the "Options" menu. Patrick, Jenny, Timmy, Tak.