When you touch a circle, the wall of the corresponding color is unlocked. Jfkdjfulkjehfuidlkjsahfuialjshdfiujkshduifjheuilwjkdhfqiukljashdiuljkfhiudsjkfhuiajeks...
Collect three black orbs to win. (Hint: for the first transparent wall, go all the way down, take a left, and go in circles around the large box at the top, and it will be unlocked.)