Captain Marvel (DC Comics) Comics" #21 (1941) introduced the Lieutenant Marvels: three other boys named "Billy Batson" who could also become adult superheroes. Captain Marvel, Jr., the alter-ego of disabled newsboy Freddy Freeman, debuted in "Whiz Comics" #25 (1941). Mary Marvel, alter-ego of Billy's twin sister Mary Batson, first appeared in "Captain Marvel Adventures" #18 (1942). In contrast to Captain Marvel and the Lieutenants, both Mary Marvel and Captain Marvel, Jr. remained kids in superhero form, and were given their own eponymous books in addition to appearing as the lead features in "Master Comics" and "Wow Comics", respectively. Captain Marvel, Captain Marvel Jr., and
Comic Jumper: The Adventures of Captain Smiley to the game's difficulty, adding that there were also a few moments where the game's momentum slowed. GamesRadar's Matthew Keast rated the game a 4/10, criticizing its sense of humor and repetitive gameplay. The reviewer said that it "just feels like a first-time attempt at a twin-stick shooter, however the devs didn’t look at what makes these games function smoothly or provide an interesting and fair challenge." Kotaku's Luke Plunkett said "Comic Jumper" was "what happens when a developer sets out to make a funny game, then forgets all about the game part." Comic Jumper: The Adventures of Captain Smiley