Ringmania

The object of the game is to make all the rings disappear on the 17 levels ordered by increasing difficulty.
Align 3 rings of the same color to make them explode. Press the space bar to increase the speed of the falling rings and use the left arrow and right arrow keys to rotate the wheel.
After an explosion, the remaining rings not touching the wheel or any multicolor ring, explode too.
The quickest you complete a level, the more point you gain.
The game is over, when a ring touch the ceiling.
Clicking on "Demo" allows you to view the replays of 10 top scores.

[play] [source link]