Shoddy mechanics, bad collision detection, enemies are vulnerable on the head but not the sides, HP lowers when touching enemies on the side, bad copy and paste job in many respects, no lives screen or fadeout to dictate when current round is over, unoriginal as far as platformers go - enemies are on a fixed path without movement; as far as mockups go you have it figured out, but outside of that - what kind of game is this supposed to be? Platformer? It feels more like an ice level than anything else. I gather the only thing original on your part is the centaur and t-bones littered throughout the level. I admit the Celtic music and level feel are a unique originality - but you can make the rest of the game just as flush with itself instead of borrowing from others.