Final Project Resources
Making the background transparent (in an existing image). Not all of the following links explain exactly the same. The strategies differ in how they select the area that is turned transparent. So, it is worth having a quick look at all of the different options to figure out which is the one that works best for you. Also: these are just some of the first hits that google finds. If you google for "gimp transparent background", you will find loads more.
Background music and image
Here is an example of the pop-balloon-game with background image and music. You as also need the following image and music files: