A Chrono Stone (クロノ・ストーン, Kurono Sutōn) is a special object introduced in Inazuma Eleven GO 2: Chrono Stone.
The Chrono Stones are gems with an iconic 'C' on it. Chrono Stones are made when a human with strong willpower is getting sealed, which alters time and creates a Chrono Stone with the person's soul in it.
The Chrono Stone first appeared in episode 11. Beta used the Sphere Device to seal Endou Daisuke, but his willpower protected him and a collaboration in the timeline caused him to turn into a stone: the Chrono Stone. Imprisoned in this stone, Daisuke could still talk and move. He told Raimon about the Hasha no Seiten, so they can create the Ultimate Eleven and beat El Dorado.
In the episode 17, El Dorado's leader, Toudou Heikichi, held a purple Chrono Stone in his hand, in which Endou Mamoru is imprisoned. He said Daisuke's influence as a Chrono Stone allowed Raimon's players to Mixi Max with historical characters such as Nobunaga.
In the episode 24, Zanark was holding Endou's Chrono Stone, which probably means he got it or stole it from El Dorado.
- The reason why the anime is called "Inazuma Eleven GO 2: Chrono Stone" is because of these stones.
- Each of these stones have a different shape and color. For example, Daisuke's stone is orange and has a hexagonal shape, while Endou's is purple and is triangular-shaped.
- "Chrono" is from the Greek word Chronos, which means time. Also, Chronos was the Greek titan of time.