General trap info - When shot or activated with the Use key from a short distance, the boulder rolls out damaging and knocking back enemies. Hitting enemies does not affect the boulder's speed. Upon collision with a slanted wall/terrain the boulder will change trajectory. They will usually miss tiny enemies like Kobolds unless they are standing on a floor trap, like the Tar Trap. The boulder will be destroyed upon hitting a barricade or any surface (including the ground) with sufficient force; however, boulders can travel through each other. When the boulder rolls into a floor trap, it can become airborne for a brief period.
| Requires dealing 10k damage to unlock |
| Increased Roll Distance [+3 Lifetime, 13] - 7 |
| Explodes on Destruction [100 damage] - 7 |