 In a special Chrono Trigger Cross Review, "Famicom Tsūshin" scored Frog a 39 out of 40.

 is a futuristic robot with serial number R-66Y.He was rendered dormant by the apocalypse in AD 1999 but is found and repaired by Lucca in the year AD 2300.Upon his reactivation, Robo has no memory of his prior mission and joins the party.