Complete all challenges in coop mode

Complete all challenges in a single player mode

Detonate 30 bombs with a single shot

Have 50 asteroids in the level at the same time

Kill 1000 asteroids

Kill 1000 UFOs

Kill an enemy with a deflected bullet

Kill 20 enemies in rapid succession

Reach 4000 points in arcade mode

Reach 6000 points in arcade mode

Reach 2000 points in arcade mode

Reach 500 points without missing a single shot.

Reach 1000 points without moving

Kill 30 enemies with a single mega laser

Resurrect an ally in coop mode

Survive 180 seconds