How to play
- Drag horizontally to rotate the tower around the falling ball.
- Line up safe gaps before the ball lands on the next platform.
- Avoid marked danger sections and continue toward the bottom.
What this game practices
Useful for mental rotation and tracking hidden surfaces. The continuous timing demand can outweigh the spatial reasoning for some players.
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