Defeat the Skeleton Lord.
Defeat the Ghost Lord.
Get 100 points in the Infinity level.
Get 400 points in the Infinity level.
Get 200 points in the Infinity level.
Get 800 points in the Infinity level
Get 1600 points in the Infinity level.
Wear a costume part.
Get 3200 points in the Infinity level.
Wear 2 costume parts.
Wear 3 costume parts.
Get a 20 kill combo.
Get a 10 kill combo.
Get a 30 kill combo.
Complete 48 levels without dying.
Get +30 in all stats without costumes.