i love it. i can't find anything that i really want to crit on. like saboteur said though try that no pause thing it woul dbe interesting  then again it might seem like hes jumping from on foot onto the other but ya fav'd.

Woooah, takes a brave soul to pattern your avatar after Sloth. 

Regarding the thick black outline... I think it's just a matter of taste.  Everyone jumps all over thicker outlines in the pixel community, but it can work.  With that said, I think your character is just a smidge too small for the thicker outline.  If it was maybe 20 pixels taller it would fit perfectly.

Spiffy work overall though.  Very creative movements.