The underwater level is another easily implemented mission-type that can effectively make games less fun for everybody. Significantly slowed movement, dodgy physics and the obvious lack of breathable substances all play a part in making the gameplay mechanics behind underwater levels both predictable and boring. Then there are the obligatory clichés that must accompany the underwater level: electrical obstacles, submerged ruins, sea mines, enemies like sharks and eels. Obviously, not all underwater levels are poorly dealt with God of War II, Shadow of the Colossus, Tomb Raider II and Rayman Origins spring to mind but the vast majority have proven to be nothing more than a combination of burdensome controls and farcical aesthetic design. Then there's the oxygen mechanic that some of these levels utilise in order to make gameplay even more rage-inducing; the frantic music that plays when Sonic the Hedgehog starts to drown is scarred into the memory of every gamer who has ever heard it.
