Pinwheel

 is a boss in Dark Souls. It is found in The Catacombs. Players must defeat it in order to reach the Tomb of the Giants.

Summoning
It is possible to summon Paladin Leeroy to help out in the fight.

Strategies
Pinwheel is a very frail boss, with the second lowest hitpoints of any boss in the game, only beaten by the Asylum Demon. However, he can quickly become dangerous as the clones that he summons deal the same amount of damage as him and he can make an unlimited amount of clones. Therefore, a good strategy for fighting pinwheel is to rush at him right when the fight starts and do as much damage as possible. When he teleports after summoning his clones it's still possible to land some hits on him before he disappears. A simple tactic to identify the clones from the real pinwheel is to lock on to him when possible.

Quick Fireball
His six arms will glow and spin before firing it. Easy to dodge with the right timing.

Large Fireball
Slower, larger fireball that does more damage and has a bigger hitbox. It takes pinwheel longer to charge though. Note that pinwheel can also fire it while jumping at a downward angle.

Combustion
Close range melee attack that does big damage. Pinwheel will telegraph this by moving in close and begin spinning and glowing his arms.

Flamethrower
Extremely powerful mid-range attack. Takes pinwheel a fair bit of time to fully charge. Blocking it is unwise, as it hits multiple times and may drain your stamina bar fully.

Clone
Pinwheel will spin in the air and give off a purple light before spawning an identical clone of himself. The clones are exactly the same as Pinwheel and there's no easy way to distinguish one from the other without keeping tabs. The clone can also use all of Pinwheel's attacks but will disappear instantly when hit. Also note that there is no limit to how many clones Pinwheel can spawn.