Transmigrated into the world of "A Record of a Mortal's Journey to Immortality," mistakenly ate pokeweed instead of ginseng, and awakened an immortality lottery panel! Surviving the pokeweed accident grants one lottery draw—the Blue Star Sea! Surviving a falling out with Mo Juren grants one lottery draw—the "Panwu Mighty Divine Power," also known as the "Great Origin Technique"! ...

Jiangcheng is reborn back to before the launch of [Sanctuary Dungeon]!

And successfully awakened the unique, god-level talent [Devouring and Fusion]!

It can not only devour monster attributes, talents, and skills!

You can also fuse and enhance the acquired skills!

Jiangcheng started by experimenting on goblins, and accidentally swallowed 10,000 of them!

...

Late game.

The void of Earth has shattered, and underground cities have descended into the real world!

When countless monsters burst forth from the city!

Jiang Cheng silently raised the scepter in his hand!

In an instant!

The sky and earth changed color, and the wind and clouds surged!

If you were born in the same era as Wolverine

He gained the ability to copy other people's superpowers.

What superpower would you most like?

Telepathy?

Metal control?

...

Excuse me,

I want them all.

Yang Shu unexpectedly transmigrates to a world where time has stopped. He discovers he only has one day left to live and must enter dungeons to fight for more lifespan, or he will surely die. Suddenly, a cheat-like god arrives, bestowing upon him a god-level talent: Infinite Clone! "Holy crap! These giant ants are so powerful!?" "No problem, I have infinite clones, I can overwhelm them with sheer numbers." "Holy crap! 500,000 enemy troops, only 10,000 of ours, who can defend this city?" "No problem! I have infinite clones, watch me launch a daytime raid and catch them completely off guard!" "Holy crap! How many monsters are in this beast tide!?" "No problem, I have infinite clones, I can kill any number of monsters."

I heard the Avengers have six founders?

We, the six guardians of the Vongola, request to fight!

It is said that the Assassin Alliance, which has been passed down for thousands of years, is very powerful.

How about learning about the independent assassination squad, Varia?

S.H.I.E.L.D. manages everything and deals with all kinds of dissent.

The consultant outside will show you what it means to court death!

What?! You're saying Tony Stark is going to build the world's first time machine?! Go get that dusty 10-year-old rocket launcher out of the warehouse!

...

Our time is etched on the ring; the glory of the Vongola will never fade!

Lu Xingchen is a transmigrator who has transmigrated twice. The first time, he directly transmigrated to the world of Lord of Mysteries, landing as a demigod. Unfortunately, unable to outmaneuver certain cunning old foxes, he could only play with witches instead. The second time he transmigrated, Lu Xingchen arrived in Douluo Continent, thinking he was just a casualty, but unexpectedly, the Chaos Sea transmigrated with him. Lu Xingchen: Things are getting interesting. Hypnosis series, start… oops, wrong. It should be… Brigitte, don't turn around, I am Di Tian. …However, there's one thing Lu Xingchen miscalculated. The people here don't seem to be much smarter than those in Lord of Mysteries. Ya Li: Be my son! Lu Xingchen: ? ? Where did you get that white beard?! I really need to control you properly now.

[Dark-Dark Fruit, Demon Void, Mythical Zoan-type Shikigami, Great Swordsman, God Valley Era!]

Char Aznable travels to the world of One Piece and becomes the strongest general in the Kingdom of Vokawa, with a subordinate named Kaido.

When he and Kaido were being escorted to Mary Geoise, the Dark-Dark Fruit came to them, and a shrine was born within his body.

From then on, all Zoan-type Devil Fruits could be subdued and turned into shikigami for battle.

The game even gives you the strongest shikigami, Demon Void, right at the start!

Furthermore, there are special exclusive rewards for taming mythical beasts!

Subduing the vampire form rewards [Grafting], subduing the Yamata no Orochi form rewards [Chimera], subduing the horse bone rewards [Nest of Bones], subduing Nika rewards [Bungee Gum]... As the number of mythical beast shikigami increases and the chimera methods become more varied, Char discovers that he is invincible!

Kaido: "Mr. Machoro, teach me!"

Mo Xu Luo: "Nika Nika~~~~~"

The God Valley battle begins, and Char claps his hands together: "Chimera Dark Garden! Countless Shikigami unleash their power!"

Rocks: "This era is called the Black Emperor!"

When Char led his shikigami to attack Mary Geoise, ten thousand phantom beast shikigami slammed into his face, and Im panicked completely!

Feng Tianci was reborn into a world of supernatural beings and became an abandoned baby, who was fortunate enough to be picked up by Mei Jinfeng.

Strangely, despite being a naturally gifted individual, he possessed no special abilities whatsoever.

Until the day he turned eighteen, he awakened the ability of the Traveling Frog, which allows him to travel to all the worlds!

"Your little frog has brought back a travel souvenir for you: the Insulating Claw!"

"Your little frog has brought you back a special product from the One Piece world: the Devil Fruit!"

"Your little frog has brought you a souvenir from the movie 'Scissor Seven': the Demon Blade Thousand Blades!"

...

The moment Feng Tianci emerged from seclusion, the entire community of extraordinary individuals was shaken.

With so many martial arts techniques at his disposal, who cares about the Eight Extraordinary Skills!

Once the Insulating Claw is unleashed, it can destroy all magical treasures and skills in the world!

A punch imbued with the power of the Tremor-Tremor Fruit shattered the earth and mountains!

The Demon Blade unleashed a thousand blades, like ten thousand swords firing simultaneously, leaving no one unbreakable!

Until that day, the frog brought back a secret manual.

"You've gone bald, but you've also become stronger!!"

Reincarnated as a ghost in the Spirit Hall, he awakens his second spirit. Originally, both Ghost and Chrysanthemum Guan were born into humble circumstances, diligently cultivating to the Title Douluo realm. They toiled like slaves in the Spirit Hall, but in Bibi Dong's eyes, they were nothing but worthless lives, ultimately dying tragically at the hands of Tang San, who possessed the protagonist's halo! In this life, Ghost will never let tragedy repeat itself! Starting with an Ice and Fire Refined Body, he brutally kills Xiao Wu, taking her spirit rings and spirit bones. Two years later, at the Spirit Master Competition, a black-clad youth appears. The youth has never activated his spirit rings, yet he crushes everyone present, leaving Tang San, the three heroes of the Spirit Hall, and other genius spirit masters pale in comparison! Tang San: I've become a god of death, why am I being...

Good news, I was killed by a train at home.

Even better news: he's become the navigator of the train.

Even better news is that you can travel to the world of anime by train.

What pioneering and interesting things did you do after becoming a navigator?

She was paired with Kirito.

Adopting Lolis from All Over the World

Discussing the relationship between monarch and subjects with a famous queen

The birth of the king was celebrated with a cannon salute; God was lured onto a train; and Shiori almost fell in love with him.

Do these count?

Worlds experienced: Sword Art Online, Black Bullet, Akame ga Kill!, Date A Live, High School DxD, Guilty Crown, Academy Battle, Accel World...

(P.S.: The world-building is mostly from older anime series, with fewer newer ones.)