The Creeper

The Creeper is an infamous, green-camouflaged, near-silent exploding mob that will chase players and hiss for a few seconds before blowing. Unlike Zombies and Skeleton, Creepers will not catch fire in direct sunlight meaning they can wander around unharmed day and night, and are still aggressive. Underground or on the surface, creepers will spawn at night and in dark locations with a light level of 7 or even lesser than 7.


BEHAVIOUR
When within one block of a player, a creeper will hiss , increase in size and turn even more white, and detonate after a few seconds. A creeper will still start its countdown  when the player moves close enough (flying or not) even if the creeper is not focused on the player. Killing a creeper before the countdown starts or finishes will not cause the creeper to detonate. Creepers make audible footsteps while walking on dirt or grass blocks, but are otherwise silent unless they fall or are damaged.If they see a player walking past them, they will turn to face them and start walking towards them in aggressively

Explosive Properties

A charged creeper and a normal creeper's blast

A creeper's explosion is about 25% weaker than TNT blocks, with an explosive power of 3. Charged creeper explosions are about  50% more powerful than TNT and is about twice a normal creeper's explosion.

As with TNT and Ghast fireballs, all dropped items in the explosion radius will be destroyed. A certain percentage of blocks destroyed by the creeper will survive the blast and can be picked up. In terms of environmental damage, the harder the material caught in an explosion, the less damaging the explosion will be to anything behind the material.


DROPS
Music disc (when killed by a skeleton)
Gunpowder (When killed)