You mean like the UK DS advert where the guy altered his life by changing things with his finger? My idea is...
(Bear in mind this is if there is a Star Wars game)
*opens with the usual theme tune and the scrolling text*
Star Wars Episode WII: Rebel Assault
The Rebels have discovered a new base on the planet Kashyyk. Using the full extent of their forces to bypass the watchful eye of the Galactic Empire, the rebellion lands on Kahyyyk to find the Wookie land in ruins. The Emperor has already been here! You know what you must do!
*The scrolling turns to the stars and in a super fast movement down to planet Earth, and zooms in on somebodies living room. There stands a teenager and his friends holding the Wiimotes like lightsabres. The sound of the sabre turns on and the lightsabres sprout from the Wiimotes. the scene quickly goes into a nearby computer and through the Internet to another house, where the Imperial March starts playing and the people - possibly in Japan to show Wi-Fi capabilities - hold their Wiimotes and turn on red lightsabres. The camera sucks into their TV and the two teams clash lightsabres, and as soon as they do the scene changes to an animated shot from the game. It zooms out again and says Star Wars Episode WII: Rebel Assault, only for Nintendo Wii. Wii will change the definition of gaming. Then the blade of a red and blue lightsabre clash in the middle of the screen getting rid of the writing and the light expands, leaving the word Wii.*