Thwomps are rock creatures and baddies found mostly in the Mushroom Kingdom. They are spike-encrusted living stones, usually shaped rectangularly, that made their first appearance in the game Super Mario Bros. 3. They typically attempt to flatten or squash whoever passes below them using their own weight. Sometimes, they will be moving side-to-side. They can only be defeated by being touched by Mario when he is power-upped with a star, a raccoon or tail swipe, and hammers from Hammer Mario. It is suggested in Mario & Luigi: Partners in Time that Thwomps may in fact be born from volcanoes. There is a Thwomp in my story who is actually neutral but joins the side of good when the Shy Bros. persuade him. His name is Thwompson. He is a bookworm unlike other Thwomps who just prefer to smash.