Creator, Martin Bircher writes,

“…moi non plus is an interpretation of Serge Gainsbourg’s song “Je t’aime… moi non plus” in the form of an audio game. By operating the joystick, the human components of the song can be controlled according to selected preferences.”

You may wanna turn down the volume if you’re at work. Lots of sexy moanin’ and a groanin’ going on here.
 

 
Via Nerdcore