Hahaha, this is amazing! I love it, and for all the wrong reasons.
Echoing what Dustin said, this was good for a first movie. The effort is there, and it appears you were actually trying to make an original piece. It needs a ton of work in the animating department, but this movie proves a competency in knowing how to do it by hand. I do notice that drag the characters around a lot by the actions they're doing, rather then moving them manually. Doing this with actions like run and fall are fine, but get used to moving them with the drag tool, rather then hold the mouse down and dragging the character around while they perform their actions.
A good way to improve is to download the movies here in the forum, and just pull them apart (and I mean by watching them based on their rating. Go into the movies section and click the ratings button twice, start from there. Don't just download the more recent stuff like PatryKkorna and Thomas Saunders). Dissect the scenes and see how they move things around. At a starting animating level, I seriously recommend watching the movies made by
Theflyingcar, in a sense that he's accomplishing a lot with the little amount that he is animating, making it easy to understand what he did to make those movies look good.
I also agree with Dustin that the story is all over the place. All I got from it was
this one guy wants to beat up the other guy, because I guess the other guy ran over the one guy's dad with a car, and even then it wasn't always consistent with that. Pacing was really bad throughout and felt like it dragged on. Fade to black/white is very situational, and is not always recommended, use cut to black. That being said, I really enjoyed your placement in the old MIDI music files, some of the sounds and movements were unorthodox enough to get me to chuckled, and I laughed at
the strong guy delivering his late dad's favorite chainsaw to his gravestone, which I don't think was supposed to be funny, but I still found the moment amusing. Thinking about it though, I am not sure if this is totally your fault. I am assuming you're young, like 12 or something, so I don't expect you to make the next Vlarion or NUTS series, not right now at least.
Keep up the work though, good job!