Sneaky Creeper

Sneaky Creepers are a type of Creeper that spawn exclusively in the Gunpowder Mines. They have the appearance of a normal creeper - however, they are invisible until they approach the player.

Behavior
The Sneaky Creeper spawns in the Gunpowder Mines completely invisible.

Upon getting in range of a player, the Sneaky Creeper will become visible. It will then also begin to explode, like a normal creeper. If the player runs away before it explodes, it will stay visible, and act entirely like a normal creeper. Killing the Sneaky Creeper before it explodes will prevent the explosion, granting XP and some Gunpowder.

It has and deals

Strategy
Sneaky Creepers are not really a threat, but it is hard to kill them without them exploding. If you really want to kill them to collect gunpowder, then, as soon as you hear the "sss" sound, run away until they defuse and then either come back with your sword or finish them off with a bow. Alternatively, you can find someone trying to mine, follow them around, and kill any creepers that spawn near them.

Trivia

 * Sneaky Creepers have a chance to drop and Exp Share Core drop. If the player gets this early on, they can get a bit of money.
 * They can be killed by homing weapon when invisible which allows them to be farmed easily for bestiary.
 * Wearing Aurora Armor lets you see the runic affinity of Sneaky Creepers, allowing you to know where they are from the particles.