Rope pulling - Cambodian game

The rope-pulling game you're referring to is called teanh prot in Khmer, which literally translates to "pulling rope." It's actually a form of tug-of-war!
Teanh prot is a popular game played in Cambodia, particularly during the Khmer New Year celebrations in mid-April. It's also played during chlong chet, a ceremony associated with rice cultivation that takes place shortly after the New Year.