You spawn on a purple floor. You can move the ball by manipulating the floor. To do so, tap one area of the screen. This will elevate the selected area and turn it into a hill, causing the ball to roll in a particular direction. To win, you must obtain all keys present on the map. This will turn the floor purple, and highlight the designated area where you must guide the ball. The floor should not cover this designated area, as this will cause the ball to roll over the area. Death is caused by falling out of the map.