The Sproingy Spring is a powerup in Spooky Castle, Dr. Lunatic, Dr. Lunatic Supreme With Cheese and Sleepless Hollow. It causes Bouapha's thrown hammers to bounce off walls and bulletproof items rather than being absorbed.
Kid Mystic Equivalent[]
There is also a Kid Mystic version of the Sproingy Spring which takes the form of a yellow gem. This item can be found in the level: Trick Shot Challenge.
Demonstration[]
