Well made - good work!
One minor thing - at the beginning the hole in the ground and the "trash can" are next to each other. At first I confused the two. Maybe if it was only the "trash can" without holes around it, that would be more clear.
There were nice touches - that corals glow in the dark, that "trash cans" get filled up and blocked by a starfish.
Thank you for the game. Good luck!