The Octillery Game Freak Leak refers to the massive internal data breach known as the 'Teraleak' in 2024, which revealed scrapped concept art for various Johto-era Pokémon. While Octillery is known today as a simple red octopus, the leaked beta designs showcased a literal tank-like cephalopod, confirming long-standing rumors about its military-inspired origins that were censored during original development. This meme is widely used by the Pokémon community to discuss 'what could have been,' satirize the evolution of Pokémon designs over time, and celebrate the bizarre history revealed by Game Freak's internal development files.