On level 206 you'll find Knuckles in a cage that's inpenitrable. The only way to get him out is to use Mario's hammer to break through the steel sandbag wall. Then there's going to be Eggman with one of his new robots. You'll have to use Finn's sword to cut open the robot. Then there's gonna be Dr. Octopus. You have to use Pikachu to zap him. After that there's going to be a button that opens the cage that Knuckles is in. You have to use Annoying Orange to go into a round hole and find the code that unlocks the button! Please enjoy it!
