Level 02: The Slings and Arrows of Outrageous Fortune
There's a secret area right before you get to the exit. To get to it go to the pillar pictured above on the top right. Hit Tab and get ready for some monsters. After you've cleaned the room, go to the pillar to the bottom left and hit Tab. You'll see a switch. Hit it, then run to the northeast pillar. You'll see another secret hallway inside the secret room. Enjoy the show!