The stage looks nice, the sprites look good, 
Characters get stuck together half the time
if you hold space and move you constantly do dmg
cool that you can actually fall of the stage 
Characters do move way too fast though

I think the movement is a bit to fast for a 2-player game and the players often get stuck on eachother, due to the fast movement in air, if walking into a wall with no ground below it you wont actually fall and if the characters are stuck on eachother the attack doesnt work. I like the multiple platform heights and drops in the map which gives nice movement variety.

I do like the character design and I do like the animation, The characters move a bit too fast and is very hard to control. The players also does't not take damage consistently. I see where the game was going though.

Very simple yet fun game. Players move way too fast to clearly understand what is happening. The game could do with a bit more polish such as animation for being damaged, maybe a bigger map or anything that ends up a better mix of playing space and speed. Also, a health bar would be easier to see based on the speed the player is moving in this version (plus will look cleaner).

I like the fast frantic movement style, it works well with this style of gameplay. I did find however the characters could often get stuck to each other, and then not being able to damage each other with their attacks. An expansion of the level might be good as the fast movement makes it easy to fall off the sides of the stages.