Look at it! Look at it! LOOK AT IT!

The wonders of ye old DS graphic limitations. The joy they bring to children's eyes.
 
From what game is this?

Guess this is what happens when you got two models on top of each other with no real source of shading, right?
 
Looks like a modder animating Luigi through BrawlBox and glitches occured.
 
Bashing Donkey Kong on the head with a Nerf bat is not going to improve your batting average, who knew.