Cards
When cards are played correctly, they can give you a strategic advantage. Consider enabling playing cards during the single player campaign to help out. Note: You will need to save coins to make the most out of cards through booster pack purchases.
Classes
The following classes are available.
Heavy
Slowest and least mobile, but large. Has a higher health and does the most damage.
Scientist
Slightly weaker than a soldier, but heals every worm on its team for 5 HP at the start of its turn.
Scout
Has the fastest movement, highest jump, and a difficult to hit small body but weak weapon damage.
Soldier
Balanced in everything.
Environment
When you see worms that are too close to water, move immediately next to them and hit them with a weapon with a strong knockback. Once the enemy worm is in the water, it will die. Use the ninja rope when the terrain is difficult to jump around. Use it to stick to a surface and swing your worm around to get around mountains, hills, and other obstacles.
Various Tips and Tricks
Sacrificing your own worms for the greater good is something you'll probably have to do from time to time. Blowing up an enemy worm that just happens to be near one of your worms may... wait scratch that, WILL happen during your missions. Prepare to blow up your own soldiers in order to destroy those opposing soldiers.
Never leave your scientists unprotected. Scientist worms have the ability to cure the other worms in your squad, so it's essential to your progress to keep your scientists alive.
The most important thing to know about the game is that you can very easily destroy your attacking worm by taking an opposite number out.
If you take even a speck of damage on your way to your target, your turn will automatically end.
Don't forget to make use of ninja ropes, jetpacks and teleports to either get safely to your firing position, or out of the way of a potential attack on the next turn.
Be very careful when using any weapons that have a red number embossed over the icon. This information tells you how many seconds will pass from using the weapon to the projectile exploding.
A powerful breeze can undo even the most dastardly take-down, so keep a very close eye on the wind meter at the top right-hand corner of the screen.
Windspeed has a particularly powerful effect on use of the parachute, napalm strike and bazooka weapons and abilities.
Soldiers do decent damage and move at an average speed around the screen - a great all-rounder. Scouts do less damage but are smaller and more nimble. Scientists make for a great support team member, but if you're all about doing damage, make use of your slow but powerful Heavy class.
Cards...