Where It Comes From

Mugunghwa kkoci pieotseumnida translates to "the mugunghwa flower has bloomed," named after South Korea's national flower. It's one of Korea's oldest playground games, passed down for generations as a schoolyard staple alongside jump rope and hopscotch. The core idea is a Korean cousin of the game many countries know as "Statues" or "Red Light, Green Light": one player, designated "it," turns their back to the group and recites the phrase aloud. While their back is turned, everyone else creeps toward them, trying to close the distance. The instant "it" finishes the chant and spins around, every player must freeze completely; anyone caught still moving is out (or, in the classic schoolyard version, gets chained hand-in-hand to "it" until a free player can dash in and slap the chain apart, sending everyone scattering again). The game exploded back into global conversation in 2021 when Squid Game used it as its opening, deadly round, which only made idol shows more eager to riff on it.

How It's Officially Played

On variety shows, the bones of the game stay recognizable even when the format gets dressed up. Someone is chosen as "it" and stands facing away from the rest of the cast, usually at the far end of a marked course or studio floor. While facing away, "it" recites the phrase (sometimes speeding it up or slowing it down to mess with everyone's timing), and the other players advance toward a finish line or goal object. When "it" finishes speaking and turns around, everyone must be completely still. Anyone caught mid-motion is eliminated, sent back to the start, or given a penalty depending on that episode's house rules. The last player standing, or the first to reach the goal without getting caught, wins.

Run BTS gave this a home-friendly spin in one of its numbered episodes by having members play the entire game seated on cushions, "moving" by scooting themselves forward hands-and-legs style rather than walking, which made freezing on command look far more ridiculous than the standing version ever could. Going Seventeen has run its own dedicated Red Light, Green Light episodes, treating it as a recurring format rather than a one-off segment, complete with escalating twists between rounds.

Fun Twists Idols Add

This is where idol variety earns its reputation for turning a simple kids' game into something absurd. Seventeen's version has included a limbo bar mid-course, forcing members to freeze under a bar at painfully awkward half-crouched angles the instant "it" turns around, which alone has produced some of the show's most replayed reaction shots. Other episodes have added surprise physical obstacles, shrunk the playing field so there's barely room to move without wobbling, or stacked on a second "it" so players have to watch two different directions at once.

Run BTS's cushion version added an extra layer during a stretch when a member was recovering from surgery, giving the game an added retrieval objective (grabbing an item from behind the "it" position and scooting back to safety) so the injured member could still be included without needing to sprint. PDs also love adding sudden-death overtime rounds once only two or three players remain, speeding up the chant and shortening the window to freeze until the tension is almost unbearable.

How to Play It at Home

You need zero equipment for this one, which makes it one of the easiest games on this whole list to run at a family gathering or friend hangout.

Pick one person to be "it." Mark a starting line and a finish line (a hallway, backyard, or living room with furniture cleared to one side all work fine). "It" stands at the finish line facing away from everyone else and calls out "Mugunghwa kkoci pieotseumnida" (or just "Red light, green light" if that's easier for your group) at whatever pace they choose. While "it" is talking, everyone else creeps forward. The moment "it" finishes and turns around, everyone must freeze completely, no wobbling, no giggling into motion. Anyone "it" catches moving is sent back to the start line (or out entirely, if you want higher stakes). First player to tag "it" without getting caught wins and becomes the next "it."

Want the idol-show version? Have players do this on a cushion or pillow instead of standing, scooting forward with their hands and feet only. Add a limbo bar or low string across part of the course for an extra freeze-in-an-awkward-position twist. For stakes, keep it low-pressure: whoever gets caught first each round has to answer a silly personal question, and whoever loses the whole game buys the next round of snacks or picks the next activity of the night.

Watch It In Action

Whether it's a limbo bar mid-course or a room full of grown men scooting around on couch cushions, Mugunghwa Kkoci Pieotseumnida keeps proving that the scariest part of freezing in place is finding out how ridiculous you looked the second before you stopped.