Sway into this new UFC Undisputed 2010 trailer

One of the main things an annualized franchise must do is convince its fans that the tweaks made to each successive sequel are really worth getting hyped about. After an impressive debut with last year's UFC Undisputed 2009, Yuke's and THQ have a lot to prove with 2010. This video highlights some of the key improvements made to the gameplay engine, notably the addition of "sways," dodges that allow fighters to quickly counter-attack.

Other improvements to the combat engine involve utilizing the cage in both offensive and defensive maneuvers. The submission system has also been improved, with a more dynamic camera that focuses on the limbs that are being worked on. It's meant to be more "visceral," a trait that's pretty important in a game all about dudes beating each other up. For UFC fans, we wonder if these improvements are worth another purchase this year?