Not too shabby! Pretty cool busy game that, despite the simple graphics, does a pretty good job at intuitively teaching the mechanics through how it shades everything (while still having some cute animations for victory, haha). Apart from my brain always trying to get on stairs sideways and failing (I know, I know, that's my fault, but I couldn't help but keep trying) I got pretty addicted to this game and how challenging the puzzles could be. Felt like it wasn't afraid to ramp things up quite quickly and seriously, compared to most puzzlers nowadays which increase very slowly.
Speaking of that difficulty curve: it was a bit of a mixed blessing. I gotta say, while I like a challenge, I got really stumped at level 6 because I did not realize the game had the chops to simulate a box rolling down stairs by itself: most likely something about the simple graphics made my brain hesitant to ever believe it would have that level of physics simulated. In that way, figuring that out finally felt less like a "eureka" moment and more like a "wait, what? bullshit!" moment. Might've been nice if there was a level before that could've taught that in a more easier-to-see way, somehow: but I did figure it out eventually, so hey, it still works alright (but I wouldn't be surprised if a lot of people dropped off there)!