I am really proud of this idea, and I hope it turns out good and cohesive as I blend Kirby and One Piece Lore together...ooh boy.
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Name:
(Y/N) "DDD." (L/N)

Nickname:
Superstar Warrior (by yourself)
Glutton (by Meta Knight)
Papa (by Kirby)
DedeDickhead (by Marx)
My King (by Boa Hancock)

Likes:
Food
Winning
Being worshipped
His crew and friends (Secretly)
Boa Hancock

Dislikes:
Big Mom
Losing
Certain Insects
Dark Matter
Blackbeard

Devil Fruit:
None

Haki:
None (At first)
All types (Gained Later)

Info:
You used to be the King of a rather small and obscure island known as YumeTochi home to an odd array of strange and wonderful creatures.

Your Castle:

(A/N: I originally wanted to use the game castle, but Right Back at ya's Castle design I feel just fits One Piece a bit more)

You were content to just laze around and steal the food of your subjects.

However, one day an odd little boy fell from the sky and defeated you in battle to return all the food to YumeTochi's inhabitants.

Being defeated at the hands of a child drove you to train extremely hard, and even develop powers and abilities on your own to fight...a child.

The child who was named Kirby defeated you once again.

After that humbling experience, a newcomer came to YumeTochi on a flying ship.

This newcomer went by the name Meta Knight and he was a conqueror himself.

He attempted to invade and takeover your island and since this has basically never happened before, you were unprepared and it was only thanks to Kirby intervening that your island was saved.

Meta Knight then decided to stay to continue battling Kirby.

These losses after years of being Undefeated or even unapposed opened your eyes to the bigger world.

There were people stronger than you, there were people better than you...

How dare they...

How dare they be better than you!

People out there in the world beyond your little island were conquering islands and making a name for themselves.

What were you?

A king to a miniscule island that no one knew.

This would not stand.

For the first time in history, you were motivated, you were determined, and you trained, you trained to explore and show the world that you were a Superstar Warrior.

One day as you prepared to head out a mysterious ship crashed onto YumeTochi alerting you, Meta Knight, Kirby and a Servant of yours nicknamed Bandana Dee.

There you found a person named Magolor who asked all of you to help repair his ship.

Upon seeing his amazing Ship, you decided to lend a hand and help Magolor out only if he allowed you to travel in it with him.

After repairing the ship, he offered to take you, Kirby, Meta Knight and Bandana Dee to his island of Halcandra.

Halcandra:

It was an extremely technologically advanced island that was utilizing said technological advancements to float among the clouds.

There Magolor asked for another favor, to defeat an ancient dragon known as Landia who possess an artifact known as the Master Crown and get said artifact back for him.

Landia:

Once you and the other 3 defeated Landia, Magolor revealed he was just using all of you to get the Master Crown for himself and became an extremely powerful Godlike being.

It turns out Landia was actually guarding the Master Crown from people who would abuse it's power like Magolor.

Landia then proceeded to aid all of you in chasing Magolor and his StarCutter down.

Once that had been accomplished, Kirby, you, Meta Knight and Bandana Dee proceeded to battle Magolor with his new power and defeated him.

However, it turns out the Master Crown was a living thing and once Magolor proved inefficient decided to completely takeover Magolor's entire body transforming him into an Eldritch abomination.

However...this was defeated as well and Magolor was freed from the Master Crown.

Feeling immense regret for his actions, Magolor pledged his loyalty to you and allowed you to use his ship.

Honestly, you were surprised...surprised that Kirby, Meta Knight, Bandana Dee and especially you were able to defeat a power of that magnitude.

This fueled your determination to explore the world even more and you happily took Magolor up on his offer.

Through your adventure, you bonded with Kirby and the other 2 and in your wisdom knew their power would be invaluable and asked them to join your crew.

Kirby who had begun calling Papa agreed, and Bandana Dee being your servant also agreed, Meta Knight simply wanted a rematch against Kirby and decided to join because of that.

Magolor of course became the ship's Navigator since it was technically his ship.

You left another servant called Escargoon in charge of YumeTochi until your return.

That is how your journey began, a journey that will change you and introduce you to new individuals.

Personality:
You at first come off as an arrogant and gluttonous prick.

Eating any chance you get and seemingly not caring about what happens to those who follow you.

However, your defeat at the hands of Kirby have humbled you greatly and even though you're still kind of an arrogant dick, you used to be a lot worse.

Originally, you were happy to let subordinates do your work for you, but now you are perfectly willing to go to the front lines of a battle and fight.

You won't admit it, but you are grateful to not only your crew, but also to your subjects back on YumeTochi for actually still considering you their king and captain after all your fuck-ups.

This further drives you to prove yourself.

You aren't too smart and tend to rush into things with very little thought or planning, however your skills on the Battlefield are exceptional and you are a surprisingly decent leader when it counts.

You still remember the days when you used to be a Cowardly jerk and hate being reminded of  it.

Calling you weak or a coward is an easy way to piss you off.

You absolutely refuse to bow to anyone, even Warlords have been unable to make you fall to even one knee.

Even after you lost a battle

Powers and Abilities:

Your Hammer:

You have extreme physical strength comparable to even Whitebeard and this makes you extremely deadly with your weapon of choice, your trusty hammer.

This weapon is made from Mystic wood and outfitted with amazing technology making it very versatile.

This hammer is capable of enfusing itself with various elements like Fire, ice, water, electricity and others for various attacks and utilities.

The Hammer also functions similarly to Thor's.

You are able to mentally control it and you are also the only person who can wield it properly.

Others can lift it, but are unable to use it's more magical abilities and it takes more strength to even damage opponents with it.

It even has a built-in jet engine to increase the power of your already devestating swings.

Your Jet Hammer:

It's a truly impressive weapon that can even launch spells of it's own.

It is also completely indestructible as being dropped into a volcano didn't leave a single burn on it.

The hammer can also never harm you, it will just cartoonishly bounce off you.

An ability you copied from Kirby is the Succ.

Your lungs are so powerful you can practically inhale objects and shoot them out at supersonic speeds.

Even the jets of air you blow out go supersonic when you want to.

You're also a lot faster than you look, able to keep pace with Meta Knight who's flying speed is not surpassed by anyone other than Galacta Knight.

Transformation:

Primal (Y/N):
A form you will gain later after being possessed by a mysterious being known as Fecto Forgo that turned you into a Beastman.

In this form your Primal Side is unleashed and you become much more savage and relentless.

Your insane strength is further increased, your punches now cause shockwaves of force with each strike.

This form is utilizing Haki at all times with no restraint, observation, armament, and even conqueror's Haki are all utilized at once by this form along with all of your own base abilities making this form extremely dangerous.

This form is said to be only a taste of your full potential

After being saved from Fecto Forgo's control, you gained access to this transformation, though it was still uncontrollable.

The Ship:

The Lor StarCutter:

Extra Info:

Your Voice:

Theme songs:

Your Normal Fighting Theme:

Primal (Y/N)'s theme:

Love Interest:

Boa Hancock: