Unlock 20 locked doors.

First kill with Scissors.

First kill with a Gas Mine.

First kill with a Table Lamp.

Release Melissa from her Trap.

First kill with a Shovel.

Idle for five minutes.

Stomped first Minion to death.

First kill with a Gun.

First kill with a Syringe.

Get 1600 points by eating Ghosts successively. (Original Mode excluded.)

Obtain a Key for the first time.

Line up a pattern of two in Slots for the first time.