Elemental Story

Elemental Story (エレメンタルストーリー), "EleSto" (エレスト) for short, is a freemium puzzle role-playing game by StudioZ released for Android on January 16, 2015 and for iOS on June 1, 2015.

In 2019 the game had a Mega Man X collaboration from October 31 to November 20.

Mega Man X content
During the event period, X is given as a gift in the login bonus, the heroes (Ultimate Armor X, Full Armor X, Zero, Axl and Alia) are available in the gacha, and the villains (Sigma, Vile, Dynamo and Shadow Devil) and weapons are rewards from a Mega Man X themed event.