Booster Gold isn't always depicted as one of the more serious members of the Justice League. The time-traveling DC hero initially came off as a cocky, fame-centric character. One time, however, Booster Gold took down an entire team of super-villains that's strong enough to give the entire League trouble.

Booster Gold was introduced in 1986's Booster Gold #1, by Dan Jurgens. The character was born Michael Jon Carter in the 25th century. Michael earned his nickname "Booster" when he became a famous football player before going to jail for gambling on his own games. When Michael later learned how important superheroes were in the 20th century, he used Rip Hunter's time machine to go back in time and become a superhero.

At first, it seemed as if Booster Gold used his newfound identity as a hero for fame and fortune. Yet Booster Gold would soon become an integral member of the Justice League. Booster's first big moment took place in 1987's Justice League #4, by Keith Giffen, J.M. DeMatteis and Kevin Maguire.

Related: Tomorrow Woman: What Happened to the Justice League's Heroic Traitor?

Maxwell Lord was pushing for Booster Gold to become a member of the Justice League. Realizing that the league didn't want him, Booster decided to leave. Of course, when the Royal Flush Gang attacked Justice League headquarters, Booster Gold stepped up in a big way.

Booster rushed to combat the Royal Flush Gang, a task the Justice League allowed him to accomplish on his own. Batman, in particular, wanted to test Booster Gold's powers and abilities. Initially, it seemed as if Booster was in for a tough fight. King cut Booster with a barrage of lethal playing cards, while Ten and Queen proceeded to kick him and hit him in the head with a rock. To top things off, Booster Gold was blinded by the flash from the press's cameras. Before long, however, Booster Gold made a major comeback.

Booster decked King with one punch and flew out of the way so Jack accidentally shot Queen and then rammed himself into Jack, knocking him out. Ten was the last one to go down before Ace showed up. Ace seemed like the biggest challenge by far, considering he was a giant robot.

Related: Justice League: How Poison Ivy Joined DC's Mightiest Heroes

The entire Justice League struggled against Ace, including heavy-hitters like Captain Marvel and Martian Manhunter. Fortunately, Booster Gold had a clever idea. Booster had Blue Beetle disconnect the league's force field before he flew Ace into the sky. Dropping Ace, Booster Gold had Blue Beetle reconnect the force field, causing Ace to explode on impact.

Overall, this whole battle was a very impressive show against the Royal Flush Gang. This supervillain team was often pitted against the entire Justice League, showing just how formidable they were. Booster Gold, however, took down most of the Royal Flush Gang single-handedly. Even though Booster was assisted in the battle against Ace, he was still a deciding factor in the Justice League's victory.

Booster Gold's surprising victory illustrated how easily he was underestimated. Although he came off as cocky and superficial, Booster still showed plenty of impressive combat strategy. Appearing as an empty-headed celebrity, Booster Gold was a real underdog in his fight against the Royal Flush Gang. This underestimation helped Booster win the day. Moreover, the futuristic technology that Booster brought to the table, such as his personal force field and powers of flight, helped him take on the Royal Flush Gang.

It's important to remember that, coming from the future, Booster Gold had a general knowledge of the heroes and villains of this time, preparing him well for his battle in this issue. It's also significant that Booster Gold and Blue Beetle, two of the goofiest members of the Justice League, were the ones to defeat Ace. Even though these two worked well together in a comedic context, they were also a formidable fighting team. All of this was enough to impress Batman, who welcomed Booster Gold into the Justice League.

KEEP READING: The Justice League Has a New Smartest Hero - and It's NOT Batman