I don’t know why, but I had so much trouble on the penultimate level. My brain like completely shut down even though the solution was a single block-move right in front of my eyes. I was trying to shove a tall block against the wall but little B-0 just wasn’t quite small enough to fit in the gap. I sat there stuck restarting again and again for like 10 minutes. All I needed to do was move the tall block out of the way because I didn’t need it. Other than that colossal brain fart, I thought most of the solutions were pretty straightforward and had a good bit of fun throwing the boxes around in build mode.