I'm kind of sad that you didn't try to stretch the words as far as they can go to make something FULLY creative. But I guess you could say you were more creative than anyone else because everyone went "Oh, well, Biscuit! A game about biscuits!"
It took me a while to notice the goal was to get 10,000 score.
It's also just not fun to be told what I'm suppost to do, without it being a tutorial, And just leaving text on the bottom left of the menu. I would say that simply moving the text onto some sort of pop-up could've been one of the easiest ways to fix that issue.
Sprinting seemed like it was just something you added because it was a 2D game where you can walk and jump around. It didn't really do anything.
Which just kinda added more dissapointment, I just noticed you didn't make the player code. But you still could've removed the sprinting part, Or just not mention that you can sprint as something thats as important as jumping.
Also the challenge was pretty basic, But could've actually been pretty awesome.
I personally didn't like the main mechanic being that you spam space as fast as possible, And stop when you're getting close to water. But theres definetly ways to innovate on it, I guess?