This is probably the second or third game I've played made with PICO-8, and I have to say, I'm very impressed and am sold on trying that software some time to make a game. This was definitely a lot of fun, challenging, but not over frustrating for me.
I was able to beat it the first time through without any game overs. I was definitely compelled to try to finish the game without stopping, just like the last game I played, luckily it wasn't endless with the levels, it was just the right amount! It also felt like the difficulty kind of went up and down throughout the game, as opposed to just increasing consistently level by level. I liked that honestly.