The "Nintendo Games" forum, which includes Retro Game Reviews, has been archived and is now read-only. You cannot post here or create a new thread or review on this forum.
When the battle starts, peg it as quickly as possible towards one of the unicors statues, and suck up an ice elemental asap. Then run around the statue to avoid the boo. Use your vacuum to suck it onto the unicorns horn, to burst that boo. Then run around a bit to make some boos chase you. Then suddenly turn around, and let rip with the ice. Hoover up the frozen boos, and continue this process until the boss is defeated.
If you just run around chasing the boos with the ice on, they will simply run away out of range. Let them come to you, then freeze em.
And make sure you are on full health before ANY boss battle.
remember to go to the safari room before hand , go to the right hand side of the room and suck the chest with yuor vaccum to get the big heart out.
if that dosent work , just keep trying , i had a few tries before i got him , and king boo , took me about 6 times , and lots of frustration.
If that does it, then it's justa matter of using the right technique to beat him, so maybe there's hope for the guy yet.
And all this 'my brother' stuff doesn't fool anyone, we know you're stuck on luigi's mansion
: P
My advice? Grab yourself another Gamecube!