I have constructed one of the most efficient healthbar scripts on Scratch, the base code only using 3 lines of code and one sprite. (There is a 4th line that uses my custom block, the custom block code that contains the root of the project is only 3.) I have made this script as efficient as possible and I am very proud of it's design.
This entire project was coded by me and only me. If you would like to use it in your projects, leave me a comment saying you will use it and give me credit in your project's description. Thanks everybody.