Wow this is such incredible feedback I don't know what to say! I appreciate all of your advice on where to take the project next. However, since this project was made for my YouTube, I won't be continuing development of it especially since it's a Nintendo IP and don't need them breathing down my neck lol! Yes! The permanent upgrade UI is def rushed! I actually made it a day before the video came out so I needed something functional out the door. I'll write all of these feedback notes down for future reference for a similar project, or for this project if I at some point in the future continue it.