Batman and The Flash: Hero Run

From GREE: Batman & the Flash: Hero Run!Become the savior of Gotham City and Gorilla City as you do battle with the Joker and fearsome Gorilla Grodd! - Battle by night: As Batman, exit the shadows and liberate Gotham City from your nemesis, the Joker, and his army of twisted clown thugs. - Race by day: As the Flash, face your archenemy Gorilla Grodd and his swarm of fearsome gorillas deep in the mysterious Gorilla City.