Your best score, power-ups and settings are saved in this browser on this device. Clearing site data or playing in a private window erases them.
Move the planet along the top of the box, then click, or lift your finger, to drop it.
Two identical planets merge into the next one up. Bigger merges score more.
A planet more than halfway over the rim flashes red. If it stays out for more than a couple of seconds, the run ends.
Forming certain planets for the first time in a run earns power-ups. You can hold up to 9 of each. During a game, this page is in the pause menu.
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