It was the fifth game, Jump rope. Where two metallic dolls oppose each other and hold an automatic jump rope which you must jump over or you'll meet your demise.

Nam-Gyu (player 124) was getting mad at you since he assumed you took his necklace that contained drugs, he got super aggressive to the point min-su had to get involved. Min-su pulled out the exact necklace Nam-Gyu was looking for and shook it around mockingly.

"Looking for this? Well then go get it pussy."

Min-su said in a taunting tone before then throwing the necklace onto the platform where the automatic jump rope was. That meant Nam-Gyu would have to survive and get the necklace. Little does he know, the necklace did not contain any drugs. It was a trick so Nam-Gyu would fall off the platform and die knowing his actions were in vain.