In many videogames, an enemy or player's health is represented visually as a bar or meter. Remix this project and move this bar sprite into your backpack to use in any project you like. All you need to control the bar is any variable, such as HP, and its maximum such as HP Max. These numbers are used to create a percentage value that then controls the costumes of the sprite. Don't like the color? Just use the fill bucket on the sprite's costumes.