Steel Diver is a Nintendo 3DS game released on the same day as the 3DS system itself. But although this game has beautiful 3D graphics, it's not really anything really special. I would give it a 6/10 for effort and graphics, but I think we can expect more for the 3DS.
Unlock the expert mode: Finish every chapter with every sub to unlock the expert mode. Good luck, this mode's a bit more challenging.