When attempting to complete the level Tilted Tunnel (Acorn Plains-2) there is a secret exit that when completed will reveal a path taking you to the level of Acorn Plains: Blooper's Secret Lair. You may, once this is completed, skip to Soda Jungle. This secret exit is accessible towards the end when the moving platforms have stopped and you are granted accessibility when you jump from it's highest point to on top of the ceiling. If it is any confusion, then you must find another ceiling to jump on and this path will take you to a pit which, clearly, in the middle of, is a pipe which will take you outside and this path will finally take you to the exit. This link, once clicked on, will show you a video explaining and showing exactly how to follow the procedure: http://www.youtube.com/watch?v=yHewcULb5mE .