The Rock Mushroom originates in space, around mountainous galaxies. Ever since they dropped down to the Star Earth, you can usually find them underground. Upon using the mushroom, the user gains a rock-like outfit and the ability to form rocks around them into a ball, flying off into the nearest foe standing in your way, or the nearest wall. No worries about your boulder ball breaking, you can just make another! The ball's movement is limited, but fast, able to stop most enemies that come across it, including ones shaped suspiciously like bowling pins.