Sans the Skeleton from Undertale vs Bill Cipher from Gravity Falls. This is Cartoon Fight Club CFC episode 36. Undertale vs Gravity Falls. weirdmageddon vs sans genocide run.
weirdmageddon part 3 will be included in the rematch. Sans is a short and big-boned skeleton, with a perpetual grin on his face.
Bill Cipher Game Engine: https://www.youtube.com/watch?v=3iPcQ5M9138
Sans and Papyrus are skeletons and in this episode, Sans will fight the triangular dream demon, Bill Cipher.