Sources

This is just a simple update to add the full sources of all the music and stuff used, the mini credits I did in-game were drastically overshortened.
The usernames given are the usernames of the people on their respective source websites. E.g. Font.com for fonts.
The format will be:
Link to the source I used - The name of the asset - The username given on the website - any licensing information I was able to find.

Fonts:
https://ggbot.net/fonts - PublicPixel - GGBotNet - Licensed under the Creative Commons Zero v1.0 Universal License.

Sounds:

https://pixabay.com - One Beep - gamer127 - No license information given. No description given. No user information. (too generic a username, could be anyone. not significant enough to go sifting through.)

https://pixabay.com - 8-bit explosion low resonant - s9menine - (Likely the website found it on freesounds.org and copied it across, as freesound.org was given as a source to find their public sound effect files when I checked their github. It's mostly in Chinese though, so I can't have perfect knowledge.)

https://pixabay.com - Night City - KELODVIN - No license information given. No description given. No user information. (Found a Soundcloud account under the same name, that has this piece uploaded. No idea if it's actually an official source. No licensing information was given here either, I'm unsure whether it's actually up for grabs.)

https://pixabay.com - 8bit sample - Suburbanwizard - No license information given. No description given. No user information. (There exists a bandcamp account called Suburban Wizard. There is a single track on it, which is freely availabe, though it isn't the one listed here. I don't know if they are the same people, or if this track even belongs to someone.)

Moral of the Story. Don't use Pixabay if you intend to credit sources, it won't help.