Awesome work Ciro, glad to see that you got the code rolled in there and working without issues. If you're looking for help with any other functionality just let me know (I don't mind reading through your code ;o) ).

As for the dependencies, it's trivial, you just need to get your app to the point where you want to do an "actual release" (gotta be getting close eh!), then just make sure you follow the steps of getting it up into the "extras" or "Extras-devel" repositories. If you do that, then as part of your deb you can just make pygame/etc as dependencies, and they'll automatically be pulled in.