Natural Dancer is a sub-boss, found on the 110th floor of the Yabbashah Block in Tartarus. It impedes the party's progress and must be fought in order to continue. It later reappears as a normal enemy in Empyrean.
Natural Dancer tends to spam Sexy Dance to mess up the party's actions, and hitting with its Wind spells while the party is either attacking each other or doing nothing at all. Yukari is a good option in this fight, as the boss' Wind spells will do negligible damage to her while she can heal other party members. Aigis is also useful for getting rid of Tetrakarn, as using the Rush command will reflect her pierce attacks back at her for minimal damage before negating Tetrakarn. One option is to simply enter the battle alone with a Wind-resisting Persona, hence nullifying the bad effects of Charm and reducing the amount of damage this boss can deal. A favorable Persona to have is Ghoul or Yamata-no-Orochi, since they both nullify Wind and can learn Ice skills which it doesn't resist. Orobas and Kusi Mitama will completely block damage from its Wind attacks, leaving the protagonist free to deal with its other abilities.
Equipping Narcissus' heart item (Narcissus Flower) is also useful for this fight, as it nulls the Charm effect, making the fight a lot easier.
Natural Dancer appears in the 8th and 9th Paradise of Heaven within the Midnight Channel. It will use Marakunda on the party before attacking. After being defeated, it may drop Hemp Cloth. Selling 6 Hemp Cloth will unlock the Elint Duffle female armor in Daidara Metalworks.
In Golden, it appears in the same Paradises above. It may drop Aurora Quartz for trade at Shiroku Pub.
Persona Q2: New Cinema Labyrinth
When the male party members, though mostly Teddie and Junpei Iori, attempt to enter a nightclub during a special screening in Kamoshidaman, they are turned down for not having any female party members with them. Teddie attempts to cross dress, though the group are turned down again. Whilst complaining about not being allowed in, the group are ambushed by two Natural Dancers and a Forgotten Hablerie. After killing them, the girls punish the guys for trying to get into the nightclub.