There’s a script called customFunctions.gd. There, you can write custom code for the plugin and call these functions in BuHSpawner.gd. I created it because functions like bullet_collided_body were meant to be easy to add custom code to, but when you were updating the plugin, that custom code was getting overridden. That new script will never get updated so you can write whatever in it.

An example is the collision function. This custom function is already called by bullet_collided_body in BuHSpawner.gd.