It's called Voxatron, anyone heard of it? It's looks like it's gonna be pretty awesome. http://www.youtube.com/watch?v=_q-xqI8Cm5A Joseph White, one of the creators. Voxatron is an arena shooter that takes place in a world made of voxels (little cubes, kind of). Everything in the game is displayed in a virtual 128x128x64 voxel display, including the menus and player inventory. If you look closely, you can sometimes see the inventory (score/life/ammo) casting a shadow on some of the objects on the ground.