Effing worms is game in which you need to feed a big worm with humans and cows. Simply steer it underneath the ground and pop up when ready. Watch out the bullets, landmines, and aerial assault. You can choose the worm on higher levels. Sleek skin is smooth as sandpaper and 20% faster, while tough skin may remind you off poop but gives you a 50% increase in health. stickmangames247 warmly recommends this interesting game.