The Elite Four are the final four trainers a player must defeat in the main Pokemon games before challenging the Champion, a structure introduced in Pokemon Red and Blue. Their battle music became closely linked with that last test, and later games kept the idea while giving each region its own version of the theme. Clips of the fanfare spread through gaming videos, streams and soundboards because players recognised it instantly as the sound of the endgame. It remains popular as shorthand for a final challenge, a boss fight or a moment when the stakes suddenly rise.