I have no idea what this game is called since the page on Nintendo.co.jp is made up of images (hence Google translate is useless) but an upcoming Japanese DSiWare title features a clever system of motion-controlled 3D dioramas that allow you to change the view’s perspective by tilting the DSi. It’s actually kind of hard to explain, so I recommend watching the video above to really get the gist of the game’s mechanics.
But here’s the really slick part. The DSi doesn’t have motion controls or a built-in gyro, and since this game will be available for download via the DSiWare online store, that functionality won’t be added through a cartridge. So I have to assume the DSi’s camera is being used to track the person playing the game, and 3D motion is being extrapolated from that. Looking at the video it’s not as flawless as it would be with dedicated hardware, but it’s still pretty impressive. So here’s to hoping the game eventually becomes available in North America and the rest of the world.
Update: According to Kotaku the game is called Rittai Kakushi e Attakoreda and is actually available now for download.