what do you think about this combat system for my new game

[helpmeplz]

it's just a start to an RPG im working on but i still find it entertaining (ignore the gfx for now)

http://img221.imageshack.us/my.php?i...titled12ks.swf

Controls:
mouse = look around
a = attack (a successful attack will spark red)
d = defend (face attacker to block. a successful block will flash white)
w = move forward
s = move back
q = quality (not much graphics but i was going to put one in anyway)

How to play:
click blue button to create an enemy. Wait for it to approach you and defend until it attacks (the black bar depletes), then attack it while before the white bar depletes to damage it. You can have up to 4 enemies at a time (which is very difficult)

btw: my swf runs at a constant 20 fps with no dip, why is the HTML version (which i thought was A LOT faster... running slower?)