This would be great for the subway crowd. The game would be playable with one hand in both portrait and landscape (like UFO Shooter). I made several mistakes with UFO shooter that this game will fix. The buildings were very detailed, but you could avoid them by just flying high. The scenery used to repeat too much because it was generated programmatically. This new game will use much lower voxel resolution, but each voxel chunk will be custom-designed. It really is a drag to have to design an endless terrain when it whizzes by so fast, so the lower resolution will help save level design time. The bendable and stretchable voxels could really shine in this game.