First kill with a Table Lamp.

First kill with a Shovel.

First kill with a Gun.

First kill with a Syringe.

Kill 10 minions.

Unlock 5 locked doors.

First kill with a Mannequin Arm.

Complete the "Jeff Gordon NASCAR School" Special Event.

Used Health Syringe for the first time.

Unlocked first door.

First kill with a Pipe.

Fought first NPC.

First encounter with Pighead.