Thanks for the web build! This is very nice and simple. The art is very cute, as is the game design - love playing as a hedgehog collecting mushrooms.
If I were to offer any suggestions for improvement, it would be to try to match the texture resolution on the sprites (a low-res hedgehog picking up a high-res mushroom looked a little off) and to maybe include another terrain feature as well as trees such as rock (I enjoyed spotting an additional mushroom on my way back with my first, and then having to navigate back to the one I’d seen with what I remembered of the landscape - additional terrain features would help with that) but that’s pure polish!
The gameplay is straightforward, but I’m impressed with the quality/inclusion of elements outside of the gameplay, too - main menu, tutorial!, sound settings, pausing. Nicely done! And good luck with de-cookie-ing your keyboard!