Duo mode in Zombs Royale functions the exact same way as Squad mode except there are at most 2 people instead of 4. People still get knocked out when all their health is drained.
- Stick with your duo member at all times. Having more firepower is very important. - Swap roles. Instead of 2 people attacking a house at the same angle, one of them should go into the house and one of them should attack from the outside. This way, the enemy can't blow up both people with a grenade or RPG.