Detective Comics #281

In "Batman, Robot," the Dark Knight is lured into a deadly trap and seemingly destroyed in an explosion—only for a robotic duplicate to take his place. While Robin plays along with the deception, he’s secretly helping Batman set a trap for a fugitive, using the robot as a cover.

In "The Menace of Marsville," Manhunter constructs a life-sized replica of Mars in City Park, turning the planet into a temporary haven where Earthmen gain superpowers—while Martians remain powerless. The shift in balance sends ripples through the city, delighting an unnamed gang who see a rare chance to exploit the new rules of the game.