Pretty good
Overall, I liked it. The only thing that didn't work out completely was that the animation went a bit funny in places - the jump at the beginning looked weird, when he walked through the doors it looked like he was walking behind them, and when he rolled to grab the S thing I think he rolled enough to go further, so it looked slightly unrealistic.
But the rest was good, the plot entertained enough to keep me watching, and it relates to real life :P