good but can improve a lot
the good:
the grapichs were good
the bonus for both legs
the point sistem
the bad:
if a monster was coming from the back it taked a long time to turn: you could quit the turning but it would be a very simple game, you should make the turning faster.
you could add a health bar apart the image.
things to add:
there is a lot you could add, for example: every 20 kills one boss, or each time you kill a monster you gain gold, with that gold you could improve or buy weapons or even hire people, search for survivous to join the battle, there can be different monsters, some could be fast, others tough, etc.
just use your imagination. if you dont add this thing because you dont know how you can go to the forums or the flash tutorials.