Move to aim, tap or click to drop. On a keyboard, ←→ move and Space drops.
Two of the same body touch and they merge into the next one: dust, pebble, comet, moon, Mars, Venus, Earth, Neptune, Saturn, Jupiter, then a Sun. Two Suns go supernova.
Bigger merges score more and quick chains add a combo. The jar is lost when a body rests above the dotted line, so keep the big ones low and the small ones on top.
Keys: ←→ aim · Space drop · R restart · P pause · M sound