How to add in sound effects and save a mobile app

Have you ever wondered how to build a mobile app? This is my fourth video of a series on building a screen scroller mobile app on Solar 2D. A language similar to C++. This video will cover fireballs, death sprites, adding in sound effects and how to save and load the app.

Link to the character:
https://graphicriver.net/item/character-set-v12/19466135