Super Mario RPG - Legend of Seven Stars [Secret Boss] Culex

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Status and equipment check at 01:04
Battle begins at 02:08

Showing how to find and unlock the door that leads to the most powerful enemy of the game: Culex. This guy easily gives Smithy a run for his money.

I came to this fight with Bowser and Mallow for the same reason of Smithy's battle: every other video has mostly Geno/Toadstool team and it's worth showing how hard Mallow can hit if you know the weaknesses of the Crystals.

Being a super boss of the old Square games you have actually to find him, you really can't come across this guy by accident and even if you do he's kind enough to give a chance to back off. He's not bluffing when he says he's strong; either you come here prepared or he's going to absolutely trample over your team.

What makes Culex so damn difficult is the sheer power he has with his crystals, each crystal accompanying Culex can use any spell ranging from the most harmless to the ones used only in the final maps of the game. The good news is that once you destroy two or three of them the fight is as good as won, the bad news is you have to survive until then.

This fight was a nigh disaster, though, because the Crystals screwed me over for the first half of the fight with Red using Corona twice and Green using Petal Blast twice on a row; it was kind of my own fault for since I did not pack enough Freshen Ups for this fight. Culex was also pretty uncooperative nullifying with my Power Blasts and Crystallines with his Shredder.

Geno Boost (perfect timed)/Bracers/Crystalline or at very least Lazy Shell (armor) isn't really optional here unless you're around Level 27+ because without any of these Culex and the Crystals are so strong they can wipe your party in a single turn if you get a bad roll of enemy specials.

Things to watch out for:
Red Crystal - Corona.
Blue Crystal - Ice Rock and Solidify.
Yellow Crystal - Sandstorm, Water Blast, Blast, Storm and Boulder.
Green Crystal - Electroshock, Petal Blast and Light Beam.
Culex - Shredder, Dark Star, Flame Stone and an animation-less (blockable) attack.

Weaknesses:
Red Crystal - Ice (Mallow's Snowy)
Blue Crystal - Fire (Mario's Orbs)
Yellow Crystal - Lightning (Mallow's Shocker)
Green Crystal - Jump (Mario)