I like the concept its quite fun
The presentation is great but I think 3d mode could use shadows or something to help understand the perspective
With the first ball puzzle i actually tried rolling it at first and eventually assumed that might be used for a later puzzle so I did get the logic for the final puzzle but dismissed the solution because it seemed too tedious to execute
Its also easy to get crushed in 2d because it lets you walk under moving platforms that you shouldn't be able to fit under
Still I would like to play more puzzles, good work!