Swap

We've never seen anything like this new tetris-columns mutation in which you have to get rid of colored blocked by hitting them with a giant metal ball.

The game (formerly known as Snap) is very simple: groups of colored blocks fall onto your screen, and you just have to drag your mouse over the launcher to shoot the ball onto them with little or great force.

Have you guessed the object? To make sure that the blocks don't cover your screen!

It's a simple and addictive game that is also totally free.