Cool idea. Lacks animation which hurts it... a lot. Gravity feels off, as well.
Lacks a lot, and I mean, a lot of polish.
One of the biggest issues however is the level design. What could be executed well with decent levels was not executed well. One thing I advise against is that whole thing at the start of levels where I had to kill myself several times to be able to make it past the first obstacle. That part felt like a 30 second chore and threw off the pacing a lot.
Overall? Pretty cool.