This game is great, the streamlined visuals, the almost puzzle like mechanics of figuring out how that darned square moves, the added details of mocking text and a speedrun timer. I couldn't get past the "Feeling agile?" level, but everything about this game screams quality.
The awkward movement means this concept probably wouldn't do well past a jam game, but as a proof of concept it's fantastic.
P.S. I also loved this games ability to introduce pretty much no new mechanics because it didn't need them.