User blog comment:HTF1234/Happy Tree Friends Adventures RPG: The Fire Point (v1.0.0 release)/@comment-28713855-20160218002923/@comment-4834197-20160218012320

I believe those spritesheet sets are still in this site somewhere, but I think I'll post the "much cleaner" sprites (without the other unneeded characters) soon.

As for music, are you really sure they're in the correct format? If yes, did you import them to the project properly (without any problems)? If this also doesn't have any problems, did you make sure that the music is coded to be played (either via map properties for the map's music or events if the music is event-based)?