Well deserved credit has to go to Russell Luzinski for creating this homemade working Pac-Man costume. You have to be reasonably built to be able to carry this costume around the whole night since it weighs in at over 30 lbs. Which means most Pac-Man fans should not attempt to recreate this.
I wonder how much he charged people to play a game.
To learn how this Pac-Man costume was constructed check the step-by-step tutorial.