When a series has an impact on you as a player, it’s usually because of something deep, or moving, impactful in a way you never imagined possible. The twist in Bioshock. Leaving the Vault in Fallout 3. The Last of Us’ sudden, shocking ending. You really wouldn’t expect the same level of reverence to apply to a cheap-and-cheerful series of games where you shoot giant ants, fire rocket launchers at UFOs and destroy entire cities for no real reason other than because you can.