"Let me know if you want more."
I want more!
The mechanic is clever and used in a variety of creative ways (my personal favourite was the bouncy platforms), the character (and the art-style in general) is adorable, the GameBoy style graphics are perfectly done (I especially love all the little added touches like the overhanging branches above the walnuts), the music and sound suits the gameplay perfectly, and you have absolutely nailed the "era feel" category. Even the box art is great haha! Not to mention the actual box in the main page banner.
I'm just gushing at this point! I hope you keep working on this- it's gotta be a perfect score from me :)