You may remember how, back in 2008, Youtube user Evi1wombat hacked a treadmill computer to play and display the lyrics from Portal's catchy theme song "Still Alive", capturing its spirit even without GlaDOS' vocals.

With Portal 2 recently released, Evi1wombat has once again put his school gym's discarded Cybex panel to play the sequel's less popular but still charming end credits track "Want You Gone".

To make it work, he spent three days replacing the CPU (an 8501 clone swapped out for a dsPIC30F4011), writing the drivers and engine, and programming in the song.

[Via Technabob]