Kill 50 Electron enemies

Kill over 10 enemies in a single dead zone

Kill 15 enemies in a single dead zone

Reach maximum 10x combo meter

Maintain a 10x combo for 10 seconds

Acquire each pickup once

Acquire 25 pickups (total)

Complete all missions

Reach 100000 points in arcade mode (single player or co-op)

Reach 250000 points in arcade mode (single player or co-op)

Revive co-op partner in Arcade or missions

Survive 5 minutes in Arcade mode (single player or co-op)

Complete all achievements