Robot Electro with red and yellow colors in its armor is called "Iron-Man" in Marvel Mystery Comics #12, issued in October 1940, 23 years before first appearance of Tony Stark's Iron Man :
Marvel Daily Art on Twitter: "First Electro, and now Marvex…did they call EVERY robot “Iron Man” back then?? #marvel #marvex #ironmanmarvex https://t.co/N2m7MOar2k" / Twitter
LEGO Marvel Super Heroes 2 Electro 2099 Boss Fight 4k Ultra HD 60FPS 2160p - YouTube
LEGO Marvel Super Heroes 2 - Electro 2099 - Open World Free Roam Gameplay (PC HD) [1080p60FPS] - YouTube