I tried the container method, but the monster would come in with a health bar and when you shoot it, the health bar goes down which is good. When another instance of that same monster comes in and the first monster isn't destroyed, the second instance wouldn't have a heath bar untill the first one is destroyed. Also, when one instance of the monster is hit once or twice, the next monster will have that same amount of health as the first. Any suggestions on how to fix them?