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You’ve made it. Hellen Gravely is a captive of the Poltergust and you’ve managed to bring Luigi through several grueling floors only to face the Grand Poobah, King Boo. Make no mistake, the final boss ofLuigi’s Mansion 3, King Boo, will put Luigi through the wringer in this fight. After all, he not only wants the Mario brothers in paintings, he is now seeking revenge for Luigi thwarting him the last time they met.
RELATED:Luigi’s Mansion 3: Hellen Gravely Boss Fight Guide
In typical Luigi’s Mansion fashion, this battle takes place on the roof of the resort. And, as luck would have it, Polterpup manages to keep Luigi out of King Boo’s ensemble painting. So, once again, it’s up to Luigi to save the day.
Phase One: Familiarize Yourself With King Boo’s Attacks
King Boo employs several attack patterns, at least more than his cohorts, on each floor of the mansion. So, you must familiarize yourself with each of his maneuvers. King Boo most certainly pulls his punches, so if you know his moves, it’ll be simple to avoid taking damage.
Here are the basic attack moves that he’ll use:
After stunning King Boo following his Spiked Bomb attack, use both Gooigi and Luigi tovacuum his tongue and slam himaround the rooftop. This will begin the next phase of the fight.
Phase Two: Twin Boos
King Boo will split himself intotwo King Boos. Of course, one is the real one, and one is just a stand-in that can still wreak havoc. Prepare yourself for the same attacks that occurred in Phase One, except this time; they’ll be more difficult.
Instead of avoiding one tongue slam, you’ll be avoiding two tongue slams in quick succession. Instead of avoiding one volley of fireballs, you’ll be avoiding two volleys of fireballs simultaneously. Do you get the picture?

During the spiked bomb attack, you’ll have to be sure to launch a bomb at the real King Boo. So, how do you decipher which King Boo is real? That’s easy enough. Thereal King Boo hasglowing purple eyes,while the fake King Boo doesn’t seem to have any pupils at all most of the time.
Sometimes, the fake King Boo will flash purple pupils to confuse you, butthe real King Boo’s pupils never go dark (except when he laughs or conjures lightning).

When both Boos launch spiked bombs at you, only one will contain actual bombs that you can toss at King Boo, while the other will contain junk like an empty popcorn cup or a toilet paper roll. Grab one, shoot it at the real King Boo, and slam him around again.
One might also have a heart,so pay attention to that opportunity if you need to replenish health.

Phase Three: A Triple Threat
Following an imposing cinematic, phase three of the fight will begin. How shocking! NowKing Boo has split himself into a group of three. Who would have ever seen that coming? Most of the attacks are the same but much more intense now that there are three King Boos.
There is one new attack, however:
Follow the same method to avoid attacks as Phase One and Phase Two. Remember that it will only be more difficult given the amount of area three King Boos can cover with damage-inducing attacks. Eventually, shoot a bomb at him and slam him in the same manner to end the fight.






