hooray for motion tweens!!! =D
yaaay! I love motion tweens, thats all I use! I can see this is preaty bad , but ... it looks like you tried. so...
[bum-ba-da-dum-dum-dum-daaaaa]
here are some tips. from someone who really likes to use motion tweens:
1 don't be afraid to use lots of key frames, and crap-loads of layerrs
2 a lot of little movements is better than a few big ones; make them duck, sway, bounce,shift and turn, [and so-on]
3always use techno; it doesn't matter how good one song sounds... a techno version will sound ten times [10x] better.[trust me]
4 no rush! take your time to make it the best flash it can be. and remember, a patient animator is a succesfull animator.
5 never give up; try, try, and try again. if somthing gets a low score, remake it, if you don't like something, remake it!
6 mind your physics; people, don't just go flying up in the air, nor do they just slide from place to place. visualize some of your scenes and how would they realy look?
7don't wory about blood, it's really not necacary. a good flash doesn't need gallons of blood flying everywhere. don't try it unless you're sure you can do it right: bad blood is worse than no blood at all.
I hope these tips help. motion tweens are esier and, many times, better than frame by frame. keep working. and your get the hang of it.