There's no bat signal required to call these heroes to Montreal! Warner Bros. Games has revealed four massive murals across the city, featuring the characters you can play in its brand new Gotham Knights video game launching this fall. The heroes from the DC Comics' caped crusader franchise include Batgirl, Nightwing, Red Hood, and Robin, whose large-scale likenesses were all interpreted by famed local street artists in collaboration with LNDMRK, the agency behind MURAL Festival.