You can't export Game Maker Studio games as .yyz and expect people to be able to play them. Those are game maker projects. You need executables or zip files.

Also these files have not been altered in two years, so I have to assume this was not made during the Jam timeframe.

The game doesn't have much connection to the theme. Although the graphics are quite polished, I will not be awarding the game any points unless I can somehow be assured that it is actually a jam game and not an old game submitted on a whim.