Kill 10,000 monsters
Kill 500 monsters
Kill 50 monsters
Save 100 blobs
Save 10 blobs
Save 1,000 blobs
Collect 5,000 coins
Collect 1,000,000 coins
Collect 50,000 coins
Kill one blob
Buy a new gun
Use full energy in a single session
Buy all guns
Finish a level without killing or losing a single blob
Finish a level without killing a single monster