Search through the games I've played and finished through genres

To start, the link is:

So for this project, I wanted to do something that was fun for myself. I decided to do the project on video games, specifically allowing a user to look through the games I have completed recently by searching by genres. The titles are made with the title name, the genres they are a part of, and their highest score on Metacritic. This project took a while because of what function the program should have, and what data structure to use. I decided to just go with graphs since one object will be referenced by multiple other objects.
There are some things that sort of limit the functionality of the program, but I will deal with that soon.
Thank you, and happy learning!