Thoughts on the game:
I ended up beating this game without dying a single time first try. Proof: I know there is no reward for doing so lol. Also did it without rotating any pieces (didn't know that was possible). As a result the game felt a bit samey as I just did the exact same thing every single level: I stacked blocks below me and jumped up, and rarely used any other blocks than the one and two block high ones (I know now that since you can rotate that's technically all of them but same idea).
After thinking about it, I think it's because the only things that can actually be a problem are 1. platforms above you where you box yourself in 2. accidentally blocking off your jump with a 3 high wall and 3. falling. Unfortunately all 3 of these are trivialized by simply building wide, I just spammed the 4 wide block and never had any issues with these.
The boss levels were cool because they added mechanics but the other levels all felt exactly the same, you just tower up and if there's something above you just put a few 4 wides and you're fine. But other than that I would have liked some variety in level design and gameplay, I think not taking away any blocks is a bit of a problem because once I found a strategy that worked I had no reason to deviate from it at all the rest of the game.