Gundam Musou (Dynasty Warriors) (PS3 & Xbox 360)

It was shown in the Microsoft conference only for about 3 seconds, listed in one of the games to get but not in Microsoft's suggestion list.

For those that rather use their skill in combat with swarms of enemies then this is the game for you. You goal is to take over enemy outposts, kill their boss and destroy enemy remaining mobile suits left in the area while defending your own at the same time. The demo for PS3 you can control Wing Zero and are partners with Master Asia and one of the characters from Zeta Gundam in capturing outposts on the red planet. For those that want to play with their friends can grab a second controller and plan out where they would attack and how in split screen.