Dude that was fantastic!
Loved how you changed from pleaseant, smooth lines when the spider was nice and caring, to ragged and sketchy when he's a monsters.
Serves all of them right!
Hope you get an A in your assignment and I hope you make more flash movies, some less gorey? hehe.
Only part that seemed flawed was when the spider was in the Mario scene. The background and ground didn't seem to really move with him and it moved in different speeds.