This is a very fun game. If you have played any Sonic games you will have no problem with this game. The thing that makes this unique is the fact you always have a partner and they are connected to you by the power rings you both hold. This doesn’t matter too much in one player mode, but in two player mode you must work together if you don’t have teamwork you won’t complete anything in the level together. You start off as Knuckles for the opening stage and you meet Espio the Chameleon and he becomes your first partner. After beating the opening level you can pick from Knuckles the Echidna, Mighty the Armadillo (who previously appeared in the 1993 arcade game SegaSonic the Hedgehog), Espio the Chameleon, Charmy Bee and Vector the Crocodile. The game also featured two additional partners known as Heavy the Cook and Bomb the Bomb. These character you can get from the claw machine where you get your partner in one player mode (You can use the claw machine in two player mode as well). Heavy and Bomb are pretty much useless. Heavy is a robot that kills everything he runs into and is indestructible. Bomb is quick but all he does is blows up when he gets hit and hurts enemies around the explosion and he can also hurt his friends as well. This is a very fun fast paced game like all the Sonic games. This is one of the better games on the 32x and its pretty rare now a days. When it came out it got mixed reviews you either loved it or hated it. I was part of the group who loved it. If you have a 32x this game is worth picking up. Check out the video below to see some of the game play.
Resources: Knuckles Chaotix Wiki