Wolf of the Battlefield: MERCS (Sega Genesis, 1 player, 800 Wii Points)
We say: download it!
MERCS is a pretty badass game. It has all of the key elements needed for an action game circa the early '90s: a buff hero; explosions; and wave after wave of expendable enemy soldiers. My entire time with the title has been a treat, so if you're a fan of shmups or action games in general, you should check this out.