Klaymen's motions were penciled first, then used in tandem with a model to record the animation. One method used by the designers to create the creatures in the game, was to take children's toys and cover them with clay to see what shapes were formed. A boss in the game, Joe-Head-Joe, is actually the face of Joseph Sanabria, one of the game's designers. The cutscene clips were created by applying stop motion animation to the modeled clay figures. TenNapel commented, "When I sculpt , I feel very relaxed and comfortable, compared to doing art on the computer where you'll find me scowling and squinting a lot."