Wow. this is really good for your first jam game. I liked it a lot, its really tricky.

Good job!

A very simple game, and sometimes a bit hard to see. I find I wait around a fair bit at the beginning waiting for something to happen, but once it does, it's quite engaging! Those narrow rectangles though - are they safe to stand on if the blocks on either side come up? That must be a pretty tight squeeze! I felt like they were basically danger zones too.