The launch of Fortnite's sixth season this week is making headlines for a very jiggly reason.
Calamity, the popular shooter game's new central protagonist, has noticeably moving breasts as she performs the 'jubilation' emote.
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The breast animation has caused many amused reactions on social media, but Epic Games - the studio behind Fortnite - says the feature is an accident and will be removed.
"This is unintended, embarrassing, and it was careless for us to let this ship," the company told The Verge.
"We are working now to fix this as soon as possible."
Calamity, a Wild West cowgirl, is described as the new face of Fortnite. She, along with DJ Yonder, are unlocked with the Season 6 Battle Pass at Tier 1.
Her basic outfit is a white singlet with a pair of Daisy Dukes and a brown cowboy hat.
In videos of Calamity performing the jubilation emote, she holds both arms up, leans forward and rapidly bounces from one foot to the other.
Just how the wobbly breast animation was overlooked by Epic Games and accidentally included in the update remains a mystery, but the company appears to be moving quickly to delete it.
"We have disabled elements of our animation system," the company said in a tweet on Friday morning (NZ time).
"This means you may see visual issues with some outfits. Thank you for your patience while we work through these issues!"
Season 6 of Fortnite is available for purchase now.