Not to be a critical a-hole, but based on what I've seen, you could do very well. I know that this game was made in a very short time, but if you were to make a sequel, I have a few recommendations. For one, in the beginning, wouldn't you eat plants or be a more cellular organism? Two, what if said hypothetical sequel/expansion followed a more traditional evolution theme (like with evolution trees based on what you eat). For example, eating more crabs might keep you aquatic, while eggs will make you more humanoid. I love the pixel art, and the game already has edible diversity. + so AdventureIslands can see.