Medal of Honor: Vanguard
The second World War 2 video game to come out on the Wii with controls that take full advantage of the Wii remote's motion sensitivity. You play as a soldier going through some of the war's toughest battles, including Operation Husky and Operation Varsity.
I just got Medal of Honor: Vanguard, and man is it fun! You can duck, jump, do an about face, lean, sprint, melee, and did I mention shoot a gun?