Not a bad game at all. Kinda reminds me of Myst from the 90s. It was a bit of a hurdle at the beginning, trying to find the clue for the first puzzle; but once I got past that, it was a decent challenge, and a lot of fun.
As someone experimenting with Unity myself, I was always kinda intimidated by how much work goes into a decent game, but here is one that I can see took a fair amount of time, but the concept is simple and needs very little coding. The only thing you need to think of is what challenges to use next. You've made me more confident in my ability to make something interesting and fun without needing a whole team of developers to make it possible.
Sometimes the game slows down if you mash a button, it did when I held down the jump button to avoid gunfire and the pointer had a large ping, but otherwise an amazing game.
 "Eien"){kind=icon}
 "Factory Balls"){kind=icon}
 "Jelly Escape"){kind=icon}
 "JumpingLine"){kind=icon}
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