This is the base of all the undertale projects i make, includes the menu, hp, soul, box, and blaster system. theres no notes so and code is messy so you might have a little trouble figuring it out.
NOTE: i did not make this engine, i am nowhere near that level, credit to Nikarosi for the original engine. Most of my projects attacks are used from other projects attacks i like, and i just change them a bit to fit with the theme or to be more balanced. Im not really good enough at making projects to know how to make completely new attacks.