Access the level select, then navigate to the sound test in the bottom-right corner of the screen. Play sounds 01, 09, 09, 02, 01, 01, 02, 04 in order, and a chime will sound. Now enter any level and tap the word "SCORE" in the top-left corner of the screen. You will transform into a ring and be able to freely move around the level using the D-Pad. Press the + or - buttons to change which object you are, and press the jump button to place that object. To change back into your character, tap "SCORE" again.