I like the idea. But, it's totally making me crazy that the whole screen flips. I especially liked the rocks circling around and bumping... the flying enemies path kind of were a bit unpredictable sometimes which made it quite hard to do in addition to the gravity flip thing. In the end quite a good game, difficult but doable ... I would have liked some more sound/music.

Nice take on the gravity inversion! I really like your tileset: it looked simple and elaborate at the same time

It's funny how a chicken can virtualy fly in your game by spamming space :D

It's a bit of a mindf* hitting space several times to overcome enemies or other obstacles, but that was quite fun!

When you said "gravity inversion" I did not expect level inversion. It's weird but it's interesting!

I'm assuming you're using move_and_collide()? You might want to check out its counterpart, move_and_slide(). They both will collide with objects. The difference is that slide will adjust the vector so that momentum is preserved, rather than lost entirely like with collide. It'll help with the getting stuck to walls. 

I really like your art style. Wish there was some background music or some sort of audio!

Cute chicken :D

The inversion is so sudden I used it as some sort of jump. I could beat most levels just by inverting if I almost died.

Cool idea!

Fun, but made me rage in some levels(a good kind of rage)