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Minireena are antagonists in the game Five Nights at Freddy's: Sister Location. They first appear in Night 4.
Minireenas are small, mannequin-style dolls that accompany Ballora in her gallery, dancing alongside her. They seem to be modeled after artists' mannequins, with articulated joints and heads that appear to be simply full masks covering a ball-joint at the neck. They do not have detailed nor moving facial parts, teeth, nor eyes; the exception being during their jumpscare animation, during which they have glowing yellow irises within the black holes of their mask.
When dancing with Ballora, they wear tutus like she does, however they are completely bare during Night 4's springlock suit event.
Five Nights at Freddy's
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Five Nights at Freddy's 4