You've got to hand it to PETA. Their creativity is as boundless and their shamelessness.
This time, they're after Super Mario:
"When on a mission to rescue the princess, Mario has been known to use any means necessary to defeat his enemy—even wearing the skin of a raccoon dog to give him special powers.
Tanooki may be just a "suit" in Mario games, but in real life, tanuki are raccoon dogs who are skinned alive for their fur. By wearing Tanooki, Mario is sending the message that it's OK to wear fur. Play Super Tanooki Skin 2D and help Tanooki reclaim his fur!"
In this version of the game (complete with infuriating MIDI-type music), you are the skinned raccoon dog, chasing after a flying Mario, dripping blood from your flayed pelt he has wrapped himself in. Fun for the whole family!
Enjoy the game here.