|King Boo's Boiler Ruins|
|Hack||Luigi's Mansion 64|
|Boss(es)||King Boo (Ghost Bowser)|
|Number of Stars||1|
|Music Used|| Sonic the Hedgehog 3 and Knuckles - Sandopolis Zone (Act 1)|
King Boo Boss #2 - Paper Mario - Tutankoopa
|Stage or HUB Level is located in||Mansion Grounds|
King Boo's Boiler Ruins is the second King Boo level in Luigi's Mansion 64. The Boiler Ruins is made up of old concrete and abandoned mesh platforms above a huge lake of lava. Several Bullies guard these platforms and the route to King Boo's arena.
The entrance to King Boo's Boiler Ruins is found in the Mansion Grounds. Before obtaining the first Power Star from Abandoned Harbor the blue portal to the water level will be in front of the entrance to the level. Once the first Power Star of Abandoned Harbor is obtained, the blue portal will move to the back of the room, allowing access to King Boo's Boiler Ruins. One Power Starling can be found in the game.
The way to defeat King Boo is the same as in King Boo's Moon Complex. Unlike the first fight with King Boo, he will move faster, making it more difficult for Luigi to grab his tail. King Boo will also no longer shoot his fiery breath; instead, he will spit up to three fire balls, which can burn Luigi. However, when King Boo gets thrown off the edge by Luigi and touches land again or when Luigi first meets him, the platform will start to tilt, then will slow down, and will go back to normal. King Boo can also warp to a different part of the platform to attack Luigi. When Luigi is too far away from King Boo, King Boo will charge at the hero. However, he will stop if he gets too close to the edge of the platform; this in return can leave King Boo vulnerable long enough for Luigi to grab his tail. Upon defeating King Boo, Luigi will receive the key to the mansion's upper floors.
Star: Boiling Red CoinsEdit
Like King Boo's Moon Complex, there are eight Red Coins to be collected. The Power Starling will appear at the bridge shortly where the Warp Zone that leads to King Boo himself.