The official TMNT page just dropped this original short in celebration of San Diego Comic-Con, and it's a funny and frenetic celebration of the greenest crime fighting brothers in merchandising history. This particular interpretation was written by Jhonen Vasquez, whose mix of gothic darkness and scatalogical humor you might remember if you were a fan of Invader Zim (the Nicktoon that launched a thousand annoying DeviantArt profiles).

In the short Raphael and Donatello compete to see who's the better warrior: Don with his fantastical inventions, or Raphael with his sarcasm and anger issues. For fans young and old it's a fine piece of animation and I genuinely busted a gut when Shredder showed up.