These stat-change cues come from Pokemon Emerald, the Game Boy Advance entry in the Pokemon series, where they played whenever a battle move raised or lowered a Pokemon's attack, defence, speed or other stats. Because Emerald and its battle system became a touchstone for a generation of players, the rising and falling chimes were ripped, shared and reused far beyond the original game. They now appear in Pokemon gameplay videos, fan edits and meme clips as a shorthand for getting stronger or weaker, and they remain popular because longtime fans recognise the meaning instantly.