Played as a child on Cool Math Games, I wasn't very good at it but I had fun, and that's what matters. I saw another reviewer comment how it "made them feel like a dumbass" and honestly, that's a very apt description for Bloxorz.

nostalgic + annoying

wanted to see if i could finish it and i could

I keep trying to get on with this sort of game and failing, I can see that they are good games but I just find them hard going.

Excellent craftsmanship though it's clearly one of the best of its kind.