Christ - this was from 2011? It's so well animated, I didn't even notice.
I'm excited for the 5th continuation of this series, I've always been addicted to your animation style since before I was even allowed on Newgrounds (shhh, I was a rebellious child, heehee), this was what really got me into wanting to draw because of how intense the action scenes were.
Next goal is animation!
Keep up the good work, I await the next part with abated breath.