When you play a Video Game, you expect be able to use your skills as a gamer to beat whatever challenges the game throws at you. If the challenges requires a lot of skill, the game is hard to win. If it doesn't require much skill, it should be an easy game. However, some games that should be relatively easy are actually quite hard. It could be due to shoddy programming, a Game Breaking Bug, poor implementation of gameplay elements or time constraints, but the developers threw in something which makes the game harder, but which has nothing to do with the player's or AI's skills. This is fake difficulty.