Achieve a score of 1000 points.
Achieve a score of 2000 points.
Achieve a score of 3000 points.
Achieve a score of 3600 points on Advanced difficulty.
Beat the game.
Beat the game on Advanced difficulty without losing a life.
Seal away Dr. Frankenstein's creation in under 4:30.
Weave your way through a wave of bats in under 3 seconds on level 3 or above.
Ride a moving platform across the pool of acid and make your way back with the objective in a single cycle.
Fall into a hole in the middle of the 2nd floor and land on one of the tiny platforms while they're in motion.