Worms - When it comes to games that can absolutely eat your time if you’re with someone, Worms is in a league of its own. A simple concept of aiming for the enemy, picking an angle, picking a level of thrust, turned on its head by the addition of bananas, cows, sheep, old ladies and a giant concrete donkey.

https://www.youtube.com/watch?v=v-mt4sE2lnU