I kind of liked it, although it feels like it needs another round of debugging. The collision-detect seems to be a little off, and I can sit over whatever is in the middle of the screen and nothing can shoot me.
Cool game well done!
Would like to see the characters react a little more quickly to mouse commands. COuld be a Flash limitation, though. Overall, excellent!
quite nifty! Only change I would make would be to have the W and S key go up and down, and the up/down arrow keys go back and forth. That way the four cardinal directions are controlled by one hand.