A new demo for DS puzzler Exit has appeared on the game's official website.
Instead of a stylus, as you'll use in the finished game, you use a mouse to guide the game's heroes through a series of hazards.
Exit was first released for PSP nearly two years ago. It's really rather good, according to our reviewer.
There's an Xbox Live Arcade version too, which is also pretty good.
Exit DS is out in Japan this month, but there's no word on a European release as yet.