Well..
Kind of incomplete (or extreemely buggy take your pick). I am going to go with incomplete because it makes this seem more like a test run. Some issues:
1) Level 2 is nothing but a gray screen, the game bugs out after level one. Not good.
2) The movement is choppy, and by that I don't mean the animation isn't smooth, I mean that the player moves badly. I understand that you were going for kind of a retro style game, but unless you go back to OLD atari days most games didn't have movement that bad. smooth it out a bit. give the player some play in the jumps.
3) A health bar would be nice. One hit kills are generally not fun once you leave the realm of puzzles.
4) Sound would also be nice.
5) The game seemed to be glitchy as to on what you are able to stand. Sometimes I could stand on the pipes other times I could not. Made me wonder what gives.
I think this could be fun, so I am giving 3 stars for effort, but it also seems very unfinished so I am giving you 0/5. I don't think you should scrap it, but it would be nice if you finished it, polished it, and re-submitted it.