Producing Worm hints and tips are difficult, the game has so many different facets that producing a definitive playing guide is difficult, probably impossible. Restrict teleports to 1 or even off, so that people really have to contemplate their moves and do not get the chance to hide away. Make the digging tools limited, forces people to attack.
Air strikes are particulalry effective against groups of enemy worms.
Always check the wind, try against the wind shots for some spectacular results. Learn the method of swinging on the rope and being able to throw yourself up and over objects. Learn the method of shotgunning mines onto other worms, try and read where the mines will go. Keep as high as possible, in the centre of the playfield - too near the edge and you could be blown off the screen. When using grenades etc and you wish to throw a grenade down a tunnel, you can do this by setting a long timer and using HIGH bounce, the grenade will roll and bounce much more effectively.