Yes you 100% absolutely can ! Credits would of course be a great bonus as well if you could include them. Also a link to the finished game as I would love to play! Merry Christmas!
Viewing post in JRPG 8-Bit/Chiptune Adventure Music Pack comments
https://play.google.com/store/apps/details?id=little.beto
I used 6 or 7 songs made by you, it's freetoplay. Credits are on the game's home screen.