You did great but...
The drawing and animation was sweet, but sometimes it got really sloppy though. In all, great work. The story was almost laughable, but I like how you got all the characters together, even the Tankmen. The battle scenes were good too, even though they seemed rushed, or you just different put any time for suspense... (You could have waited a few seconds before blowing Pikanjo's head off.)
Music was a nice choice. Voices on the other hand... Sometimes they were funny, but its hard to understand them when they're at different volumes and they're distorted and stuff. I liked the references though; Boondocks, DBZ maybe?
P.S. And also, can you make the video size smaller? I've got a pretty big laptop and even I couldn't see everything. Kudos