The Akai MPC100 is a semi-portable "music production center" (MPC) with a 64-Track MIDI Sequencer, a 32-voice Stereo Digital Sampler and 16 velocity and pressure sensitive rubber pads. A group of Japanese coders hacked the operating system and have been selling upgraded versions of the OS for owners to install. The latest rev includes this musical game of Pong, which triggers samples of your choice as it plays.

Akai MPC1000 now really does play Pong [MusicThing]