The Caveman looks exactly the same as the Runner, with the only added design detail being a crude cheetah hide garment, based on the stereotypical caveman design.
The Caveman is unlocked immediately upon starting Run 1. There is no change in performance or gameplay when playing as the Caveman; the only difference lies is in the design details.
As with all the costumes in Run 1, it is only available to those who are playing on Kongregate with an account.
- The Caveman and the Zombie were both in Run 3's files once. They were later removed, meaning they were probably leftovers.
- Player_03 was considering them to be added at one point, but he couldn't fit neither of them in the story, or come up with gameplay. To replace the Caveman, the Bunny was created.