Not bad.
It's not bad. Could be better, but not bad. The movement section is pretty clean. As you said, not the greatest AI. Also, you could pick up the items by swinging at them. Of course, this could actually be incorporated into a game, but it's not the greatest thing in the world. Also, you should probably try to stay away from coding in movieclips. It's fine if you do, but if you want to transition into AS3 anytime soon, you should probably code in the timeline. It's also a lot easier to find stuff, because everything is in one place. Also, there's a glitch where if you jump, and attack while in the air, you fall through the ground. Not horrible, and really easy to fix, but still, you know what I mean. So overall, it was pretty good for a beginner to low-intermediate actionscripter, but it could be better.