GoalMatch the colors of the things with the colors of the food. Reach the target height to advance to the next level. Collecting the right food item will grow the thing. Collecting the wrong food item will shrink the thing.
Mouse ControlsClick the thing to select it. Click it again to un-select it. With a thing selected, click another thing or an empty tube to move it.
Keyboard ControlsUse keys 1 through 5 or numpad 1 through 5. Press a key to select a thing. Press the same key to un-select the thing. With a thing selected, press another key to move it.
Touch Screen ControlsTouch the thing to select it. Touch it again to un-select it. With a thing selected, touch another thing or an empty tube to move it.