Akira Shiroyanagi is the protagonist of Battle Game In 5 Seconds. In the anime, Akira is mysteriously killed, revived, and captured by Mion along with several other random people to take part in a program where each of them has a supernatural ability. Akira's ability is whatever he can persuade his opponent to think it is, and so far he has deceived others into thinking he can imitate Mion's ability to turn his hand into a gun, as well as other abilities.
Despite his abilities coupled with his intelligence, there are some anime characters that could still give Akira a run for his money. From Kurapika's intellect and perception to Shiki Ryougi's instant-killing abilities, these anime fighters could potentially beat Akira at his own game.
10 Kurapika's Perception, Intellect, And Other Abilities Could Help Him Outsmart Akira (Hunter X Hunter)
Kurapika from Hunter x Hunter is extremely perceptive and smart, being able to even notice which people were following him throughout the Hunter Exam arc. This intelligence and perception could easily help him figure out if Akira is lying to him when trying to persuade him about having specific abilities, and he could find a way to outsmart Akira at his own mind games. Additionally, his physical strength, speed, and agility are well-enhanced, giving him an edge in a physical showdown against Akira.
9 Scar's Powerful Alchemy And Other Abilities Could Instantly Kill Akira (Fullmetal Alchemist)
Scar from Fullmetal Alchemist proved himself capable of fighting people who are as powerful as or who actually are State Alchemists, such as Mustang. Scar's tendency to kill first and ask questions later would make it easy for him to just chase down Akira and take him out without being affected by Akira's own words. Even if Akira did manage to convince Scar that he had specific powers, Scar would use that opportunity to try to find ways to counter it with his alchemy and instantly destroy Akira in the process.
8 Sailor Mercury Is Just As Intelligent As Akira (Sailor Moon)
Sailor Mercury is another character who would use her own smarts to outsmart Akira. Mercury proved countless times during her run in Sailor Moon that she's one of the most intelligent Sailor Scouts. She could use her intelligence and Mercury Goggles to analyze Akira's abilities and find a way to defeat him.
Even if Akira did convince her that he has specific powerful abilities to potentially defeat her with, she could use that knowledge to find a way to counter those abilities.
7 Levi Is Humanity's Strongest Soldier (Attack On Titan)
Levi is known as humanity's strongest soldier in Attack on Titan due to his military prowess and his own strength. His capability of leading a team would help well against taking down Akira, as long as the rest of his group did not fall for anything Akira said. Levi is also fairly smart, having used his team and his strategies to win against beings as powerful as Titan Shifters themselves throughout the series. If they can outsmart and defeat Titans, they have a good chance of beating Akira at his own game.
6 Beelzebub Is One Of The Strongest Demons In Her Series (I've Been Killing Slimes For 300 Years And Maxed Out My Level
Beelzebub from I've Been Killing Slimes is one of the most powerful characters in her series, if not the most powerful. She was one of the few people who could go head-to-head against the isekai protagonist Azusa in battle and not instantly lose. She can fly, use magic, and has enhanced agility and speed. She's also smart enough to not fall easily for anyone's tricks, let alone Akira trying to persuade her that he has some kind of power.
5 Claude Faustus Would Easily Take Akira's Soul (Black Butler)
Claude Faustus appeared in the second season of Black Butler, and as a demon, he could potentially trick Akira into giving up his own soul. Claude is extremely capable of lies and deceit, much like Akira is, and like Sebastian, Claude is capable of many magical abilities and shares a similar ability to adapt to whatever circumstances he finds himself in during battle.
He also wielded the demon sword multiple times during his run on the show and was one of the few people who could match Sebastian in battle. Given this track record of well-demonstrated abilities, he could easily outmatch Akira.
4 Bell Cranel Could Use His Feelings To Power Through Whatever Akira Brings (Is It Wrong To Try To Pick Up Girls In A Dungeon!?)
Bell Cranel from Is It Wrong To Try To Pick Up Girls In A Dungeon!? could win a battle against Akira. His ability, Desire Realis, powers him up via his feelings to make him get stronger and grow faster. This made Bell pull out some terrific victories against foes during his run on the show so far. This ability, in addition to his determination to protect the people he cared for and his quick thinking and agility, could help Bell secure a victory.
3 Roronoa Zoro's Swordplay Could Take Out Akira (One Piece)
Roronoa Zoro from One Piece is a former bounty hunter who joined Luffy's crew early on. He carries three swords at once and has proved countless times that he is one of the best swordsmen out there. Zoro is also fairly strategic in battle and could probably come up with a strategy to beat Akira if he needed to, especially if Akira persuaded him into thinking he had abilities.
After the timeskip in the anime, Zoro still proved himself as a fierce swordsman who got stronger in his journey to becoming one of the best. If he ever went up against Akira, Zoro might win.
2 Saber Has The Magical Energy Of A Red Dragon On Her Side (Fate/Stay Night)
Saber from Fate/Stay Night was born with the magical energy of a red dragon and is godlike in her energy capacity. This, coupled with her fine swordsmanship, made her a very powerful warrior in the series. She can also use these powers for defense just as well as offense, which could be handy if she ever fought Akira one-on-one with him tricking her into thinking he could turn his arm into a cannon. The battle between her and Akira would be close, but Saber would ultimately win due to her vast amount of power and battle experience.
1 Shiki Ryougi Can Instantly Kill Akira With Mystic Eyes Of Death Perception (Kara No Kyoukai)
Shiki Ryougi from the anime Kara No Kyoukai, also known as The Garden of Sinners, can go under her own self-suggestion or hypnosis to enhance her mental and physical capabilities. She can also use her ability, Mystic Eyes of Death Perception, to perceive lines or points of death that she can cut on her opponent to instantly kill them. If she used this ability on Akira, he might not stand a chance against her and could be killed before he realized it.