On the WiiFit game go to the running game for 10 mins close to the begining you go across a red bridge. A little more than half way over the bridge on the right side there is a picture on the bridge of the classical Mario
First, go onto Aerobics then Jogging and go onto beginner mode.
Right at the end before the end line there is a wall with a large pixelated image of old mario as he appered on the original games.
Ps. This is also viewable on the long lap on the... more