Pretty cool! I liked the music a lot. My biggest complaint is that the graphics are really hard to read, and I had an extremely difficult time identifying platforms.

Great implementation of the theme. Good graphics and audio also.

Good idea, remarkable graphics and audio, also pretty fun.

I like the concept after I got my head around it a little :P at first I was a little confused about being upside down.
The flipping between worlds could do with tweaking because it was a little difficult at times to get it to register and I'm not 100% sure what the 2 bars represented in the top left corner as they seemed to go down as soon as the game started.
But other than those 2 points I like the concept and would love to see it further polished. Good job and well done :)

Always nice to see a 2D platformer with gravity reversal. The graphics and music were quite nice. The theme is satisfied by the upper planet and lower planet with interacting gravity.

Without a health bar or other indicator, it was difficult to tell how much danger I was in. The enemies were tough to avoid, which was frustrating, but I was able to survive quite a lot of hits. A victory screen would have been nice, so that I could feel absolutely certain that I defeated the final enemy, and not the other way around (and that I collected all the robot parts!).

The gravity reversal was also frustrating because it was difficult to understand when the reversals would happen. At one point, I found myself standing on the underside of a grassy platform, which didn't seem to make sense.

The game would have played better if switching between the up/down orientation was done with a button. It was changing erratically, which made platforming annoying at times.

I think a health bar and game over/you win screens would also have been nice. The art is pretty neat, and it was fun to play anyway!

Very good graphics and sounds. Good luck on the compo!

Cool, I finished it. I liked the artwork and parallax. The music also created quite a dark/bleak setting which was awesome. I would have liked a health bar, also I found it really confusing to tell when you would flip gravity.

Sweet little platformer. The graphics and music was great, I also found it pretty hard to see what was going on, and the gravity switching was a little awkward at times. Very solid entry all in all, though!

Simple but fun game. Spot on the sounds, graphics and gameplay. Really nice game.