Twin Spin III
One of my favorite mini-games from Globz gets another sequel: Twin Spin III picks-up where the first two left off, continuing the same addictive gameplay formula with 24 all-new levels. The core gameplay mechanic consists of clicking the mouse button (or space bar) to 'walk' a baton around the play field and explode all of the balloons that exist for each level.
These one-button games offer addictive and accessible gameplay without a lot of overhead. There is no way to save a game or begin at any level other than the first, and there are no sound effects or soundtrack. And still there is a lot of fun crammed under the tiny hood. Click.
If you have never played any of the Twin Spin games before, be sure to check out the first and second games of this excellent casual game series, as well as a more detailed review of the original Twin Spin.