You can vote once per day, and you can come back anytime to check on how your favorite game is faring. Remember to cast another vote every 24 hours to help push your game over the top, or recruit your friends to stuff the ballot in favor of any one of these landmark titles. Then be sure to return to genesispoll.com on Saturday, August 22, 2009, to see which title the fans chose to see on XBLA as part of this 20th anniversary celebration! Remember: GENESIS DOES!
So...you can vote for Earthworm Jim, Golden Axe II, Shining Force, Revenge of Shinobi, Streets of Rage, Toejam & Earl, or Wonderboy. I don't have 360 nor ever played Genesis (only had SNES back then), but as an SRPG fan I voted for Shining Force.