Normally when I go to the Humanoid and change the MaxHealth to anything over 100 and the Health to the same value, when I test the game it's health will stay at 100, it won't go over 100?
Put This Script Inside The NPC :)
script.Parent.Humanoid.MaxHealth = 200 -- put here how much health he will get wait(.2) script.Parent.Humanoid.Health = 200 -- put in how much health he'll have