Everything worked great, except for some occasional glitches in the top matrix as the night went on. Maybe a power supply issue, but it's also possible there might be some intermittent shorts that happen when you bury that many electrical connections inside a pumpkin. It's also weird playing with the controller on the top and the display underneath, so if I were to do it again I would wire the joystem into a separate pumpkin, either wireless or with the wire made to look like a vine.
Next up? Porting Halo to a watermelon.