How to play
- Aim the launcher at a matching group or a useful empty edge.
- Release a bubble to attach it to the board.
- Create groups of the required size and use wall rebounds to reach blocked areas.
What this game practices
Combines grouping and trajectory prediction in a forgiving format. Color-dependent play may be less accessible for some players despite shape and position cues.
How we checked it
Open-source HTML5 game reviewed in the local coolmath build for startup, primary controls, restart flow, narrow-screen fit, console errors, failed requests, and third-party network activity. Upstream telemetry is disabled in this self-hosted copy.
Open-source license and attribution
This self-hosted game is adapted from Web Games by mashukui and distributed under the MIT License. coolmath disabled upstream telemetry and records its local changes in the open-source notices.
Reviewed by coolmath Editorial Team · Updated 2026-10-09