The Stone Elemental was a creature made out of stone, much like how the Ice Elemental was made out of ice and the Lava Golem is made out of lava. According to the leftover code for the Stone Elemental, it threw rocks at the player and came in three different sizes, small, medium and large. It was to carry a stone maul with which it would hit the player.
It was likely to appear in the Rock Planet.
No pre-release images of the Stone Elemental exist.
- The Stone Elemental's projectile was left in the final game, complete with code and model.