Haha, there you go : drive.google.com/open
At first,I made an example with the Global Variable for one enemy.
So if I need to apply for many enemies, the Global Variable is not my choice.
Because it have 1 value and you want to apply for all instances, it is not logical at all.
I am using Instance Variable for each enemy.
Do the same with one enemy and it is working well.
In the future, please don't stick with one direction, try to improvise for other situations :)