Meet the hostile mobs

 These are hostile mobs which means that they will attack on sight. (see Friendly Mobs).

 Hostile mobs:

 Zombie: flesh hungry. Hearts: 20. Max melee damage: 3

Zombie

Skeleton: common and fires arrows. hearts: 20. Max melee damage: 2.5. Max ranged damage: 4

Skeleton

Creeper: Deals high damage. Hearts: 20. Max melee damage: 43.

Creeper

Spider: fast and able to climb blocks. Health: 16. Max melee damage: 16.