How to make a entity shoot lots of projectiles like mobzilla

You could use some procedures to do this

Use that wierd projectile procedure and set the directions to the direction your entity is facing.
Use a repeat to make it go however many times you want.

Note that this will work like a shotgun as the repeat is basically instant; all projectiles get created at the same time.

To make this actually happen, set the shotgun procedure for on tick update and then implement a random chance so it doesn't happen constantly and lag out the game. Then use an if do loop to check if the entity currently has a living target.

I used it for a boss attack and it worked pretty well.