As there were so many problems with the last few, this one is extremely simple. Find the pony at the end of the “maze” to progress to the next level. You can do it without cupcakes, but if you collect all the cupcakes in the level you get the “good ending” to that level. (The game doesn't have an end yet, it just stops at Wavedancer.) Each level has one more cupcake than the last. Click the pony you found on the level-end screen to go to the next level. Yes, there is a lick button (space) for kicks, but no, it doesn’t do anything. Sorry