This game has some potential! I dig the animated level complete screen that pops up! However, the spikes having a box collider is pretty killer. It made a lot of the game unnecessarily difficult. I was able to get all the way through without having to cheese my way through, tho! I just wish there was more use of the upside-down mechanic! 

I ended up having to "flappy-bird" my way through this. Sadly I wan't able to get past level two. Perhaps the gravity could be reduced to make it more forgiving? The spike also need smaller hitboxes. Not bad!

I like the minimalist graphics, nice color palette too.

However, I think the spikes could be more forgiving, as it feels like their hitboxes are on the big side.

Also, some sound effects and music would help with immersion and juice.

Overall, nice job!

Fun, fast-paced game with clear and catchy design.  The gravity flip links nicely to the theme.  Level 3 is quite challenging!