I just played your game, and here's some feedback if you wish to continue developing it:
Use TextMeshPro instead of the default unity text, it's prettier.
Avoid presenting text too big or in a way that the background makes it harder to read. Use panels behind it!
Add audio to important events like passing a level, jumping or hitting obstacles.
Learn the base of shaders in unity and improve the looks of some objects.
The core mechanic is fantastic! Keep going with it! I stayed up until 6 am playtesting my game, and I know how it feels like to invest yourself in something like this.