Mario Time.

My kids love to play Mario Kart.  They were introduced to Mario on one of our trips to Utah.  My parents had purchased a Wii.  Since our last trip the boys have seriously loved playing Mario.  They love to pick their characters; Luigi, Donkey Kong, Bowser, Yoshi and Mario are among their favorites.  They know their every move and can quote the characters.
My favorite part of this is that we don't own a Wii but they love to play it.  They act it out on their scooters and tricycles.  They race each other around the sidewalk and drive way or on a cement pad in our back yard.  Then once the lap is finished they go up on the stand and do a victory dance; moving their arms side to side.  I wondered why Lincoln was hitting his head with his fists one day and when I asked he said "I'm Donkey Kong and I lost."  Then he pulled out a sad face.