Kill 50 enemies with the Vac-U 4000.

Play an offline-only game. (2P +)

Buy your first weapon.

Collect $20,000 in a single chapter.

Win a round without taking any damage in Arcade Mode (any difficulty level)

Use a paper airplane.

Wield the pipe in single-player or co-op mode.

Train a B-Spec driver up to Class 30 or above.

Reach the long version of the ending movie.

Playing from stage 1, defeat the battling robot.

Score 250,000 points.

Kill 30 two-headed wolves.