GamerFitNation's Zach talks about the 5 categories of enemies in Gaming.
"Video game enemies have become standardized. The way that I see it, there are really only 5 types of enemies. I am not talking about the enemies motivation, I am talking about bandits, robots, or lions. To make their games different, game designers simply take one of the 5 types of enemies, and give it a different motivation for hating the player. So let’s talk about what these enemies are."