Very cute and simple concept.
I enjoyed the gameplay a lot, and I thought while fairly simple, it was executed pretty well, and I thought the random events like wind were a nice addition. The main thing that was an issue for me is that stamina felt more like an annoyance than a proper mechanic. I didn't have to play around it all or add a lot the gameplay enjoyment that much, and it basically just made the game slower, which while fit with you playing a snail, it did hurt the game.
Visually I thought the art style was charming and cute! I think the only thing you would have to do to make the visuals great, would be to add some texture or props on the side of the mountain to make the game look more interesting. It still looks solid though!
Audio was a bit lacking, as there were hardly any sound effects or music throughout the entire thing. Just add some simple ones, and we would be good to go!
Theme interpretation was great, and executed great! No complaints
Overall, a simple but charming little game, Well done!