The first Inazuma Eleven video game was released by Level-5 for the Nintendo DS in Japan, marking the beginning of the franchise.
The Inazuma Eleven anime television series began airing in Japan, expanding the franchise beyond video games into animated media.
The sequel to the original game, Inazuma Eleven 2, was launched, continuing the story and gameplay innovations of the series.
The sequel anime series, Inazuma Eleven GO, premiered, introducing new characters and storylines to the franchise.
Level-5 announced that the Inazuma Eleven series had sold over 10 million copies worldwide, reflecting its commercial success.