So I have been using this Sonic Engine for Game Maker Studio and it works fine and all, but I can't seem to figure out how to play as Knuckles in the game. He is in the code, but when I test out the engine, you play as Sonic and, for the life of me, I can't seem to play as Knuckles. I looked through the code, but I couldn't find a way to play as him. Can someone please help me find a way to play as him in this engine? Here is a link to the engine if you need a look. https://forums.sonicretro.org/?showtopic=31723 Thanks in advance.