One of the best multiplayer games out there!
The controls are relatively easy to get use to and gameplay is fast and simple. However there can be some irritation with the camera's automated movement, especially when crates are dropped in game, or an airstrike or napalm strike is launched. But this is quickly corrected by a quick move of the mouse. But it is still one of the most ingenious and most enjoyable 2D platform games EVER on the PC. With the funky map layouts, crazy sheep launchers, flame throwers, banana bombs, homing pigeons and the like; and hysterically funny worm say things, you'll be hard pressed to find a more fun game to play with some mates.
Anyone with a PC should own Worms World Party! Or Worms: Armageddon for that matter.