Achievements:
Complete the following tasks to unlock the corresponding costume.
Biker Costume:
Score 1,900,000 points in Single-Player mode.
Doppleganger Costume:
Score 2,400,000 points in Single-Player mode.
Jungle Costume:
Score 1,410,000 points in Single-Player mode.
Legends Costume:
Defeat Xolotl.
Heavy Jungle Costume:
Complete the game.