Do I really need to explain Saitama?

This is the guy who rekts all level 1's in an MMORPG game.

The God of RPG games. This guy doesn't give a crap so go and get rekt.

Saito can instantly master all weapons and vehicles once he touches it. What more do you want?

She is one of the most badass heroine in my opinion. Mess with her and go BANG!

The Goddes of FPS Games. Shiro's intellect is way beyond normal. Her analysis, logical thinking, calculation speed, prediction is on a level way beyond human comprehension.

Sora, the god of strategies. No matter what game, his gaming skills and his amazing intellect are beyond your imagination. He just disassembled an entire planet and messed up the laws of physics just to win you kno.

Megane is luv, megane is lyfe. That's the reason he is considered as a villian.

Despite her adoring and cute appearance. Eu's overwhelming magical powers are beyond comprehension. One word and you're dead already. Her words will be the last you'll hear.

One of the most badass heroine. Despite her very bright and optimistic personality and her love for humans, Medaka can learn and master every techniques she witness and use it at their perfected state, alot better than their original owners. This beautiful overpowered heroine will trample everything on her path.

With a little patience and you'll see this guy later on kick some butts.

OP > Restrainter Removed > OMG.

Deemed as the strongest, disappears for some years and comes back to rekt some more people.

OP Powers? Copied, EZ.

Ryouta's has high intellect and is really perceptive. He notices suspecious things very quick. Combined with his "Photographic Memory", one look is all he needs to memorize everything with precise accuracy and details.

Don't wait for him to get serious.

So OP that the character progression of other cast was brought down including the plot of the anime(lol?).

Her amazing intellect and undescribable powers are beyond imagination, powerful enough to cause a space quake. She can literally outsmart every machine, hack computers with ease, has photographic memory, regeneration capability, insane reflexes are only some traits this overwhelming alien girl has.

Well, we all know what happens when someone is a Demon Lord, right?

He just single-handedly beat a Demon King from another world then came back to the real world to kick some more ass. What's wrong with that?

All of the arrogant, big-talking antagonist of animes should face this guy.

From his overwhelming abilities to his well-refined swordmanship. This badass protagonist will surely pack a punch.

Gaming will save the world and this guy has already proven it.

Another Demon King contender. You know what'll happen, right?

Military Experience + Experimental Drugs + Lots of Assasination mission = him.

Meliodas' immesuarable immense power will surely won't let every viewers jaws intact to their heads.

The protagonist that just single-handedly destroyed his entire empire which see him as a hero. Such actions later deemed him as the "The Black Hero".

OP knight from past and OP magical user from past = him. What more can you ask?

She just wanted to do her job as the Student Council President! The hell is wrong with you people! y u do tis?

She just easily and brutally obliterate every monster she faces nothing wrong with that.

Madoka, the main heroine of Mahou Shoujo Madoka Magica. She just freaking reformatted and recreated the entire universe! Did ya hear me? She trancended into a god and became the most powerful magical girl.

Madoka isnt' the only OP heroine in the Mahou Shoujo Madoka series, Homura too. Time manipulation, what else do you want to know?

One of the main cast of the Madoka Magica series. Compared to the other magical girls in the anime (excluding Madokas godlike powers), Mami is the strongest and most experienced of them all. Make those HEAD JOKES again and I'll freaking hunt you down even if you hide in the 13th dimensional plane!