I love this game a lot lol. When I started learning how to make games in GMS2 I made a game about an egg so it was super fun to play this haha. I love the aesthetic of this game as well as the UI and art that was made. I would definitely add an interactable in the future to make it more clear for the player what they can and can't interact with.
I'd also like to add that my instinct to play the game was by using WASD to move the player, and that it feels a bit awkward using WASD and the arrow keys at the same time. If you were to further improve the game I would maybe consider rebinding the keys, maybe W to move forward and using the mouse to direct yourself around the game, with A,S,E, mouse inputs to flip the egg and interacting with items, etc. I feel as though it would feel a lot more natural to play, as that is generally how a lot of games work. It would make it more user friendly. I love the concept of the game though !