Matthew Hankins Twitterren: "Is that a CASIO fx-CG50 emulator running a Nintendo Game Boy Color emulator running Zelda: Link's Awakening? Why yes, yes it is. https://t.co/t4jY9ts8Rq" / Twitter
FX-7500G emulator
ClassWiz Emulator Subscription Download - The app emulates the operation of CASIO scientific calculator ClassWiz models