Pokémon Fusion, often referred to as Pokéfusion, began as a niche internet fascination centered around Alex Onsager’s web tool, which automatically combined the sprites of the original 151 Pokémon. The meme gained massive traction in the early 2010s as users discovered hilariously cursed combinations like Mr. Mime merged with anything, or the infamous Starmie hybrids. It evolved from simple sprite swaps into a full-blown fan art movement where artists reimagined these bizarre mashups in high detail. Today, the meme is used to showcase either surprisingly cool designs or, more frequently, nightmare-inducing monsters that challenge the wholesome nature of the Pokémon franchise.