There are several things you can do with eggs in Monster Hunter Stories. Firstly, as mentioned, hatching them is the main use. The hatched monsters can then be customized with different equipment and skills. Additionally, you can use eggs as part of certain in - game events or challenges. For example, there might be an event where you need to collect a specific type of egg within a time limit. And, in some cases, you can use eggs to complete collection - based achievements in the game. Eggs also play a role in the overall ecosystem of the game's world, as they are a means of monster reproduction, and understanding how to manage and utilize them can enhance your gaming experience.