Subway Surfers launched in 2012 as an endless runner mobile game in which a character sprints along railway tracks, dodging trains and collecting coins. Its upbeat gameplay audio became instantly recognisable to a generation of mobile players. Years later the footage found a second life online, especially in split screen videos where the running gameplay plays beneath stories, rants and other clips to hold attention. The sound alone now signals that format, which is why creators reuse it for fast, distracted and high energy edits.