First of all, congratulations on your amazing game. I just fell in love with the idea so much, its uniqueness, randomness and well execution in conjunction its simply incredible, you sure are a creative fellow.
I love hoy you give the "health" feedback not using image/text interfaces, but you rather implement it on the scene, extra points on game design for that.
The aesthetics are extremely good, I really like the minimalist yet cute vibes they give me. The animations are very cool too, and I also love how the coconuts splits in half when impacting an enemy, that extra detail is so cool!
The audio design is gool and fits the game.
My only advise would be that you gave some extra information on how to get the ammo, I get (and really like) that you use the coconut trees as an environmental resource that also has gameplay usage, but it would be nice to explain it a little bit before throwing the player on the scene.
Again, congratulations and keep working hard, great job!