Even though I recently said they weren't a priority, I just received Megaman 5 and Megaman 6. That completes the NES games in the series!
Also received Otomedius Excellent, which is one of the very few reasons I got a 360 in the first place.
*EDIT*
Wow, Otomedius is TOUGH. The first level is super easy, but the second level is like a huge brick wall for me >_<