graphics are good
The graphics of this game are very good.
Here are my suggestions:
One of my biggest complaints is the jump button. it feels like it should be the "up" key.
Feels like there should be a block button.
Maybe different moves other than punch, like range attacks.
Maybe add some power-ups for strength or what not.
Have experience value for each monster, so when one is killed you get that value in experience points towards leveling up.
The monsters should stay on the platform they are on. Like, when they reach the edge, they turn back.
Monsters should have line of sight. I am not sure about this one, but I think that one monster saw the character when he was in the large pit and moved down.
Monsters group together making easy for a "multi-kill"
Maybe add a point system... but that system can be taken out if the experience system is used.