| Achievement | How to unlock
|
|---|
| Arcade Hero | Beat arcade mode.
|
| Are we supposed to co-op? | As a ghost, kill a monster possessed by another ghost.
|
| Building Blocks | Publish a map to Steam Workshop.
|
| Cleaner | Beat a level killing every monster.
|
| Death Dodger | Beat arcade mode with 0 deaths.
|
| Fop | Complete a level with a top hat.
|
| Full Jacket | Have 3 upgrades at a time.
|
| Look, an easter egg! | Look, an easter egg!
|
| Many Faces of Death | Kill the hero in every possible (ghost-controlled) way.
|
| Not this time | Deflect an egg into the bird that dropped it.
|
| Poor Man’s Destiny | Beat arcade mode without collecting a single crystal.
|
| Strategic Bombing | Kill the hero with an egg that flew a long distance in a straight line.
|
| That’s what I call a goomba stomp! | As a slime, land on hero’s head.
|
| Thou shalt not pass! | Kill the same opponent 3 times in a row.
|