If I make something for the jam beforehand(like art assets or music), can I use them in the jam, or does everything used in my game have to be made within the period?
"You are free to use any game engine or framework when creating the game."
- I interpret this as, if you program core Game Mechanics, Textures, Models, Music and other premade assets, then I count that as a 'framework'. You just have to put together the game in the 5-day span.