Pixabay.com

Pixabay has been a godsend for Audio/backgrounds  

pexels.com

Another great free stock resourse for images!

Audacity (program)

Edit the audio through here! Ill post a tutorial to quickly make audio that can repeat!

Use google fonts when creating your game, that way you can use these fonts on your game pages too, just pick one with bold, italic, bolditalic varients~