==Episode 1: Puzzle over Action: Gravity Gun abuse= 

 I think in Episode One, Valve killed the entire concept of making gameplay "balanced" meaning that you would have to earn a special weapon later on. For instance, does anyone feel that receiving the Gravity Gun in the beginning of the game ruins the whole fun of using other weapons, which has few ammunition compared to Half Life 2. Also, why does the Gravity Gun have to have unlimited "beam" ammo. I expected better from Valve's weapon creations. Compare Half Life's Gauss Gun to the Gravity Gun. You will find a major difference in terms of which weapon is balanced while the other is overpowered in certain areas.