Just click on the green flag and let the project run! No other user interaction is needed, but this project cannot be paused, so if you miss something, you have to start it all over. The Chromium web browser or one of its derivatives (such as Google Chrome), when installed with the PepperFlash plugin, is recommended for viewing this project (other browsers will work, but the performance will be reduced).
This project is heavily inspired by the FLOSS game, SuperTux [http://supertux.lethargik.org]. It uses some images and audio from that and another FLOSS game, Pingus [http://pingus.seul.org], as well as some data from the built-in library. The ending background comes from: https://git.gnome.org/browse/gnome-backgrounds/tree/backgrounds/Sunset.png?h=GNOME_BACKGROUNDS_3_10_0
