Anyone who's watched Tengen Toppa Gurren Lagann and saw what they did with mechs knows that not many can defeat the anime's titular robot. It's like the showrunners made it so that the final version of Gurren Lagann (the omnipotent Super Tengen Toppa Gurren Lagann) would stay at the top of the mech power list for years throughout all the newer or older anime and manga.

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Somehow, they succeeded, only one or two mechs can defeat Super Tengen Toppa Gurren Lagann and only a handful can best Tengen Toppa Gurren Lagann or the base version, Gurren Lagann. So to show you just how overpowered this comically broken mech is, here are five robots that can somewhat defeat Gurren Lagann and five more which will get reduced to rust. For the sake of consistency and relative fairness, some of these mechs who can defeat Gurren Lagann had to be compared with the weaker versions so they stand a chance; as for those that can't defeat it, we're only comparing them to the base Gurren Lagann.

10 CAN: ZINV (TENCHI MUYO! GXP)

Zinv is quite a wildcard from the anime Tenchi Muyo! GXP, it's a complete package of a mech and then some. Zinv comes with its own nano-repair system that can apparently fix any kind of damage and also comes with gravitational control, super speed, and the ability to crush other mechas.

That sounds like a handful for the regular Gurren Lagann and even the edgy Tengen Toppa version. Tenchi Muyo! GXP has even practically shown Zinv managing to survive a planetary-scale explosion and regenerating by itself afterward.

9 CAN'T: NIRVASH (EUREKA SEVEN)

Eureka Seven is an often underrated anime with a more convoluted-than-usual story but one of its greatest strengths is its fancy hippie mechs which ride hoverboards that spew out rainbow glitter trails and also explode in pink fireballs... we're not joking. This makes Eureka Seven's mech fights more grounded in physics (if there actually was such a thing in anime) and enjoyable.

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Sadly, it's also this attention to mechanical realism that makes the Nirvash, the poster mech in Eureka Seven, a lot weaker than even the regular version of Gurren Lagann. Even with the Nirvash's flight capabilities, it still relies on conventional weaponry and won't withstand Gurren Lagann's legendary drill attack.

8 CAN: GETTER EMPEROR (SHIN GETTER ROBO)

Getter Robo from the titular anime, started off with humble beginnings and a rather tamer version of itself. However, one of the most significant quirks of Getter Robo is its ability to keep evolving or growing. This meant that the power ceiling of this mecha is practically unlimited, given enough time.

Suffice to say, one of its most powerful versions, the Getter Emperor, can make quick work of the regular Gurren Lagann and possibly win against the galactic Tengen Toppa Gurren Lagann version. Getter Emperor's scale is galactic as well and has gotten so strong, no weapon can get past its Getter Energy barrier. Lastly, it can manipulate space and is definitely still evolving and getting more powerful.

7 CAN'T: MECHAGODZILLA (GODZILLA ANIME TRILOGY)

The mighty Mechagodzilla is initially one of humanity's attempts to fight Godzilla and other similar threats. One of the most prominent ones in anime is featured in the Godzilla anime trilogy movie and likewise had the same purpose of withstanding the overgrown reptile.

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Sadly, despite being able to self-heal and withstand some of Godzilla's attacks, Mechagodzilla still won't be able to compete against Gurren Lagann. It's a slow and cumbersome machine and even the regular Gurren Lagann has faced bigger mechanical and monstrous threats.

6 CAN: IDEON (SPACE RUNAWAY IDEON)

The Ideon begins to transform in Space Runaway Ideon

Ideon might look like a wimp compared to the more modern design of the Tengen Toppa version of Gurren Lagann, but it's more than a match for that mecha. Ideon was created by the same visionary who gave us Gundams, Yoshiyuki Tomino. As such, by legacy alone, Ideon wins.

Now, when it comes to combat capabilities, Ideon's are a lot more fancy and advanced than Tengen Toppa Gurren Lagann's. It's capable of destroying planets with ease and has a gun that fires black holes. This easily offsets the difference in the size of the two mechs and gives Ideon an edge against the more blunt Tengen Toppa Gurren Lagann.

5 CAN'T: UNIT-01 (NEON GENESIS EVANGELION)

Unit-01 is the purple runner physique mech we all know and remember fondly and traumatically from Neon Genesis Evangelion. Shinji Ikari, it's cherry-picked pilot, has utilized Unit-01 skillfully in defeating the anime's monsters, called Angels.

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However, since Evangelion units were specifically made for fighting Angels. Gurren Lagann's dynamics and special capabilities will easily allow it to snipe Shinji Ikari's cockpit, making the fight rather easy, regardless of how berserk the Unit-01 is.

4 CAN: TURN A GUNDAM (TURN A GUNDAM)

Turn A Gundam flying through space

You're probably wondering where's the Gundam in this list. Well, here it is. While most regular Gundam are no match for or likely even with Gurren Lagann, Turn A Gundam can easily wipe the floor with it, even against Tengen Toppa Gurren Lagann. That's because Turn A Gundam and its pilot are practically immortal and can regenerate.

What can give Turn A Gundam the edge, however, is its Moonlight Butterfly rays whose size is the distance from Earth to Jupiter. It's tiny compared to Tengen Toppa's multigalactic scale but the Turn A Gundam's rays can turn any technology into sand. Last but not least, the Turn A Gundam is powered by an artificial black hole in its chest and can use that as a last resort.

3 CAN'T: ARX-7 ARBALEST (FULL METAL PANIC)

Yet another underrated mecha anime, Full Metal Panic is full of exhilarating mech fights with their own unique twist. The mechs can adjust to special individuals known as Lambda Drivers which can pretty much bend the rules of physics using their willpower alone. This would give them an edge against Gurren Lagann, right?

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Sadly, that's only true for the mechs with highly experienced pilots of Lambda Drivers. Sousuke Sagara, Arx-7's pilot might have a Lambda Driver but he's significantly inexperienced and usually only gets by with fights against good pilots with Lambda Drivers using pure grit and skill. Fighting Gurren Lagann is a little too much for the Arx-7 without a pilot taking full advantage of the Lambda Driver.

2 CAN: DEMONBANE (DEMONBANE)

Super Tengen Toppa Gurren Lagann is the most powerful version of the Gurren Lagann and the showrunners went ham on it, basically made it a universe-sized god made purely out of the power of friendship and determination. As it stands, it appears only one other mech in anime can defeat a being like that: Demonbane.

It's a perverse amalgam of Lovecraftian mythos, magic and mech absurdity. This makes Demonbane so powerful that time and space cannot contain it. It can travel through time and attack enemies at any point in their life. Demonbane is also functionally immortal because of this as it can reset time to negate any damage. Against Super Tengen Toppa Gurren Lagann, it would be a close fight, but unless Simon (Gurren Lagann's pilot) can figure out a way to fight against time travel, then it will likely lose against our lord and savior, Demonbane.

1 CAN'T: BIG O (THE BIG O)

Big O might be a force to be reckoned with in its own enclosed anime world in The Big O but it's a little too reliant on conventional weaponry to chip away or withstand Gurren Lagann's unlimited supply of metaphysical-bending willpower.

By comparison, Big O is quite slow compared to most mechs in this list meaning it's already at a disadvantage despite how durable it is. Big O would definitely struggle and lose against even just the base version of Gurren Lagann which by itself is ridiculously overpowered already.

NEXT: Gurren Lagann: 10 Reasons Why It's A Must-Watch Anime Series