It is a game that eliminate squares in same color by pointing at the cross of the squares. There existing amount of squares, and only by pointing at the idle space of the screen and there are two or more squares on the four ends of the cross can the squares be eliminated. The score calculation is based on the number of squares eliminated. And the game can only be played within 1 min, and if point at the wrong place, which means there's no matching squares, the time will be reduced as punishment. This game can be written in Excel, or just a little off-line software that can be played without Internet access.
The graphs briefly indicate the rules and appears of the game. Appearance can be different.
Trail game website: [url removed, login to view]