Was Bangai-O HD
not enough Treasure XBLA awesomeness for you? How much awesomeness can you endure? During Microsoft's TGS keynote, the company announced an XBLA version of the developer's beloved (and expensive) Saturn shooter, Radiant Silvergun
The new version features online co-op, upgraded graphics, and a new "Ikaruga" mode, as well as a mode wherein you save a couple of hundred dollars by playing it on Xbox. It'll be out in 2011, exclusively on XBLA.