The world of anime is a vibrant tapestry of incredible heroes, fearsome villains, and debates that rage on forever about who would win in a fight. Two names that frequently ignite these discussions are Rimuru Tempest, the slime overlord from That Time I Got Reincarnated as a Slime, and Levi Ackerman, humanity's strongest soldier from Attack on Titan. When pitting these two titans (pun intended) against each other, the question isn't just about strength; it's about fundamentally different power scales and universes.
The Unyielding Force vs. The Tactical Genius: A Quick Look at Rimuru vs. Levi
Let's cut straight to the chase: In a direct confrontation, Rimuru Tempest would overwhelmingly defeat Levi Ackerman. While Levi is an unparalleled master of combat, speed, and strategy within his own world—capable of single-handedly felling multiple Titans and even holding his own against god-like beings like the Beast Titan—his abilities are still rooted in the physical realm. He's human, albeit a superhuman one.
Rimuru, on the other hand, is a primordial slime with a rapidly evolving array of ultimate skills, god-like magic, near-instantaneous regeneration, spatial manipulation, and intellect rivaling supercomputers. He operates on a cosmic scale, regularly facing threats that could obliterate entire planets. Levi's ODM gear and razor-sharp blades, no matter how skillfully wielded, would simply be ineffective against a being that can absorb attacks, negate laws of physics, or even consume souls. For a deeper dive into how Rimuru completely eclipses Levi, you'll want to read .
However, the real fun begins when we ask: if Rimuru is that strong, are there any characters in anime who could actually stand a chance against him? The answer, surprisingly, is yes. Certain characters possess "hax" abilities—powers that defy conventional logic or manipulate fundamental laws—that could potentially bypass Rimuru's formidable defenses.
Reality Benders & Time Manipulators: Foes Who Rewrite the Rules
Rimuru's power is vast, but not without limits, especially when confronted with abilities that tamper with existence itself or the very fabric of time. These characters don't just fight harder; they fight differently.
Consider Eri from My Hero Academia. While a child, her Quirk, "Rewind," is terrifyingly potent. If she could unleash its full power up close, she could rewind an opponent's physical body to the point of non-existence. Rimuru, for all his resistances and regeneration, has shown vulnerabilities to abilities that directly manipulate time or causality. To understand , check out our dedicated guide.
Similarly, Julius Novachrono from Black Clover wields mastery over time magic. With country-wide range and light-speed attacks, every spell is a potential one-shot kill, capable of aging an opponent to dust. He could even potentially rewind Rimuru to his original slime form, or perhaps even further back to his previous life, stripping away all his accumulated power. Don't miss to see how this time wizard might fare.
Then there's Giorno Giovanna with his Golden Experience Requiem from JoJo's Bizarre Adventure. If Giorno manages to land a hit, his stand's ability can trap an opponent in an infinite death loop, an inescapable cycle where they continuously experience death and return to life, never truly dying but never truly living. This kind of existential attack could be a critical weakness for Rimuru. Discover more about .
Finally, Altair from Re:Creators offers a metafictional challenge. As a self-aware fictional character whose powers grow with fan belief, anything written about her becomes reality. If a fan were to write "Altair has all of Rimuru's powers but 100 times stronger," it would simply become true, granting her an undeniable victory. It’s a fascinating concept explored further in .
Sheer Power & Unfathomable Abilities: When Raw Strength Isn't Enough
While Rimuru possesses immense power, some characters push the boundaries of raw strength, magical prowess, or unique abilities to a degree that might overwhelm even him. These aren't just "hax" users; they represent pinnacles of power in their own right.
Ainz Ooal Gown from Overlord shares some similarities with Rimuru—both reincarnated monsters leading powerful nations. Ainz commands a vast array of high-tier magic, strategic traps, and instant-death spells. His victory might hinge on his ability to out-maneuver Rimuru with a barrage of overwhelming raw destructive power or specific anti-magic countermeasures. Learn about .
Anos Voldigoad from The Misfit of Demon King Academy is a being of unfathomable power, capable of harming opponents simply by the sound of his heartbeat or nullifying attacks with a blink. Such abilities are often considered beyond the tactical analysis of even Rimuru's Great Sage, posing a direct threat to his defenses. Uncover .
Then there's Mob (Shigeo Kageyama) from Mob Psycho 100. In his 100% (or beyond) state with murderous intent, Mob's telekinetic power can toss buildings and withstand city-destroying explosions. While he might not one-shot Rimuru, Mob's sustained, escalating destructive power in a prolonged fight could potentially push beyond Rimuru's regeneration limits. Dive into .
And of course, Saitama from One-Punch Man. His entire premise is insurmountable physical power. No combination of skills, tactics, or strategies seems to work against him because his raw physical stats are simply too high. Against Saitama, Rimuru's ultimate skills and magical prowess might be rendered irrelevant by a single, casual punch. Explore .
The Unstoppable Blessing & The Skill Drainer: Unique Paths to Victory
Beyond direct confrontation or reality-bending, other characters possess highly specific abilities that could provide a route to victory against someone as powerful as Rimuru.
Reinhardt van Astrea from Re:Zero is blessed by the world itself, essentially granting him the exact abilities needed to defeat any enemy, anywhere, at any time. He once effortlessly defeated Puck in a world-destroying state. This "blessing" effectively ensures his victory by tailoring a solution to any threat, including Rimuru. Read about to grasp his unique power.
Finally, Urashiki Ōtsutsuki from Boruto presents a different kind of threat. His Rinnegan allows him to instantly steal abilities and drain chakra (energy) from afar, even affecting the soul. With speed and durability comparable to Naruto, he could potentially wear down Rimuru by continuously siphoning his vast energy and stripping him of his ultimate skills. Find out more about .
While Rimuru Tempest stands as a true titan in the anime world, capable of easily overwhelming someone like Levi Ackerman, these diverse characters illustrate that even the most powerful beings can face unique challenges. From cosmic blessings to reality-bending "hax" and sheer, unadulterated strength, the anime multiverse holds fascinating possibilities for truly epic showdowns.