LEGO version of the classic video game Donkey Kong, complete with music, rolling barrels and RCX-controlled jumping Mario!
Visit http://wrench.vib.or g/lego/donkeykong/ for a full write-up.
A view of the mechanics behind my LEGO Donkey Kong MOC. Jumping is controlled by RCX+light sensor. Music is produced from the RCX. Donkey Kong's swinging arm is purely mechanical.