Very nice concept. The game feels super polished, and while you used preexisting assets they all fit well. Gameplay was smooth and the minigame puzzles were quite clever. I had a couple of game design gripes though:
Couldn't make sense of what was happening in the shoot the target level. Possibly a bug but IDK. When it kept repeatedly giving me that level it became annoying.
And my bigger gripe was with a comment on the main page, where a user was critical of the jump button's size and you replied "that was part of the challenge."
Just a quick note regarding making the UI challenging: You are not doing yourself a favor here. That would be like if the Elden Ring technical director said to the UI team: "Huh game is not hard enough, you need to turn every piece of text in the game upside down, so funny haha". It'd make some funny meme videos, but after that nobody would ever want to play the game again.
The UI in a game is how people interact with it. And making UI a challenge is not part of making the game harder, if you want to do that, do it mechanically, people can grow in that regard, whereas making a bad UI will put people off for good. People with eyesight difficulty might not be able to read the tiny text, it is inherently bad game design to intentionally impact the users ability to experience the game in that way.
TLDR: making a game tough isn't a bad thing, but inherently screwing with peoples ability to play a game in this regard; please don't ever do this on a Steam release or people won't be kind.