I'm a bit harsh on reviewing but...
First off, I want you to understand that I really like this. I think this is very very good, but I tend to give lower scores than necessary because I know some day that the messiah of flashes will appear and I want that flash to recieve my only ever perfect score. Anyway, I like your art. Your animation was good and I know it will only get better. Your hero's voice was a little... unenthusiastic. I assume that's your real voice so I know this is asking a lot, but I think it would benefit from possibly OVER-acting the voice part. The humor was... Like Spider-man on a bad day. Wasn't really funny, just kind of sarcastic. Too many jokes like that tend to make the viewer root for the bad guy... Please take this as constructive criticism. I'm not saying your flash is bad, quite the opposite. I think this is really good. I'm just telling you what I think would improve it. Take it or leave it. Nice work overall though man!