Although the basic gameplay of Chaotix is similar to the Sonic games, the bungee cord between the two characters creates new challenges. The new characters that appear are Vector the Crocodile, Mighty the Armadillo, Espio the Chameleon and Charmy Bee. There also two characters whose sole purpose is to slow you down, Heavy the Robot, and Bomb. Chaotix adds several new power-ups and 3D bonus levels as well.