Nintendos Steel Diver: Sub Wars, recently released on the 3DS eshop, is a slightly incongruous addition to the genre. Where other sub-centric games have only the cold ocean, its textured bed, and computer-controlled cargo-carrying targets for company, Steel Diver: Sub Wars fills its watery arenas with speed-boost gates and spinning boxes that magically repair damage. Check the menus, and youll find anthropomorphic rabbit Peppy, on loan from Nintendos Starfox series. The free version offers two submarines and two missions, but $10 will give you 18 subs and five more missions