Artists have taken up the Jack O Challenge, a hilarious new art trend based around the launching-this-week DLC for Guilty Gear Strive, Jack O’ Valentine.

It starts like this- part of the reason Jack O was so popular in Guilty Gear Xrd was her ridiculous crouching animation, which shows the full effect of Gear Cells on the spine by having her pose with her butt all the way in the air.

With the Jack O in Strive not technically being the same person as the very playful Jack O from Xrd, fans were worried that they’d lost that side of the character. However, eagle-eyed fans noticed that the pose made its way into her launch trailer for Guilty Gear Strive.

Meanwhile, other fans had celebrated the character’s announcement in Guilty Gear Strive by drawing other beloved characters striking Jack O’s pose (Don’t worry, I’m keeping this as SFW as possible).

As arguably one of the lewdest characters in the Guilty Gear universe, it makes sense artist ChiliCayenne would go with I-No replicating the pose.

Of course, you can’t have a test of flexibility and not feature Dhalsim, the OG of irreplicable fighting game poses. As Quasimodox depicts the fighter, he seems wholly unfazed by the whole trend.

Speaking of spines, you couldn’t do the spine-bending Jack O Challenge challenge without Mona from Genshin Impact, known for all manner of pose thanks to her strong back muscles, as drawn by UenoRyoma on Twitter

Artist Zmac has also jumped into the fray, showing the trend isn’t just limited to fighting game characters, with Prinz Eugen from Azurlane throwing her hat in the ring as well. Something something, joke about Rear Admiral.

Of course, with all the talk about the Jack O Pose, it’s almost mandatory to bring up the best competitor in the Jack O Challenge, one mr Potemkin, from the Guilty Gear series:

It’s great to see even non-Guilty Gear fans get in on the hype train, celebrating one of the silliest things to come out of the same franchise that created Bedman. You can find more art on Twitter using the #JackOChallenge, but uh, do so at your own risk. While the ones in this article have been curated to stay SFW, the same can’t be said for the rest of the tag.