Survive a dark floor.
Kill 100 Gileads.
Beat the second floor.
Kill a Tenchi while it's invisible.
Have more armor than health.
Complete a room without taking damage.
Beat the fourth floor.
Let a boss die to poison.
Run out of superweapon ammo.
Complete a floor without taking damage.
Complete a room without attacking.
Spend all your money gambling.
Complete a floor without jumping.
Beat any mode with Bouncer.
Beat any mode with David Bowie.
Kill Dahlia.
Beat hardcore mode going into every room.
Beat any mode with Dy-no-mite!.
Get every item.
Beat hardcore mode without spending money.
Kill 1000 Jimbaabwehs.
Beat any mode with Gilead.
Beat any mode with Gorton.
Beat any mode in under 15 minutes.
Beat 4 floors in a row using only melee attacks.
Have 69 bombs.
Beat Hardcore mode with all 8 characters.
Have 1000 coin dollars.
Kill every boss.
Beat the sixth floor.
Use every item.
Have 30 items at once.
Get every achievement.
Beat any mode without taking ANY items.
Get two ghosts at once.
Beat Hardcore mode 10 times.
Complete a hole floor without falling in.
Beat any mode with Tank.
Figure out how to get to the 8th floor.
Win a Dahlia fight without taking damage.
Beat Hardcore mode.
Kill Dahlia after she spawns every set of enemies. Twice.
Fall into a hole in a hole floor.
Beat normal mode.
Get a ghost and survive the floor.