Kill 3 enemies in a row.

Finish the game with the final score below 62,000 and the last score digit not equal to zero.

Finish single chapter without taking any damage.

Nail down opponent's head with Pitter.

Beat campaign at ARCADE difficulty.

Devastate opponent's body as much as possible!

Collect your first additional weapon.

Beat campaign at any difficulty.

Beat Magician at the end of fourth chapter.

Beat Hermit at the end of third chapter.

Shoot all Hangedman's Devilions.

Save a scientist.

Collect all items in a single campaign.