After 1 week of working its done. awsd or arrow keys for movement. space to shoot gun bullet goes to mouse pointer. Highly recommend playing Eye of Cthulhu battle 1.1.2 https://scratch.mit.edu/projects/355948903/ because these boss fights are similar and avoid the demon scythes because they do lots of damage.
~~~~~~~~~~~~~~~Change log~~~~~~~~~~~~~~~~~~ 1.0.0 Original version 1.0.3 Balance update increased health to nine (previously 5) 1.1.3 movement overhauled Including adding flight, textures revamped, sound effects improved, and damage is based on ticks now instead of once per touch, many things are centered so your shots will be more accurate, death animation