Interesting concept. I included it in my Toy Box Jam 3 compilation video series, if you’d like to take a look. :)

Gravity flipping is a neat idea, but the procgen often overlaps webs, spikes, or platforms with gravity toggles and that makes it hard to tell which way they point.

I didn’t find any gems. Maybe the ones in cP53hg.png or the coins from tbj_platforming_tiles.png would be more identifiable.