1. Try to make the ball go between screens.
3. Add code to zip the dist/ folder inside the release_build script.
4. Sign Windows executable, to remove 'Unknown Publisher' warnings.
5. Remove debugging print statements.
6. Create and publish statically-linked Linux binary, and create a build script for packaging it.
7. Figure out how to build statically-linked Mac binary, and create a build script for packaging it.
8. Figure out how to input game mode and (if applicable) IP address and port through the GUI, instead of the command-line.