Just when you thought every possible variation of bouncing ball games had been invented, here’s another free online game that’s just a little trickier than it looks: Brain Bashers.

The idea is simple: blue balls on the left, red on the right. The games sluggish controls makes it challenging as the little gap follows your mouse around. Just when you’ve got the last one lined up.. another bugger escapes from the opposite side – this forces you to keep all of them and their motions in mind at the same time – especially in the first few moments if you want a good time. 32 seconds is the best I can do. How about you?

Easily one of the best ways to goof off take a break online, try this free, fun, addictive physics game: Fantastic Contraption.

The idea is to get the little pink wheel into the shaded area on the right by building a contraption from the gears and belts on the top of the screen. What’s so cool is how incredibly different every one’s solution is. Many of mine resembled tanks or tossed it. Bet you can’t solve just one. Here’s some creative solutions by jjooeh:

Four Wheeler (Up the Hump2)
The Mole (Awash)
Three-legged Spider (Up the stairs)
Dumper (Big Ball)
The Crane (Down Under)
A Tough One (Handling)
Frame (Back and Forth)
Nunchaku Trucku (Unpossible)