This is a parody I wrote of "The Ultimate Battle of Ultimate Destiny" using only Poke'mon characters. Not sure if it's what you meant by this thread, but here you go anyway.
Ol' Ash Ketchum was hoping around
Saffron City like a big playground
When Gary Oak burst from under the shade
And hit Ash with Exeggutor's Egg Grenade
Ash Ketchum got pissed and began to attack
But didn't count on being jumped by Spinarack
Who proceeded to spin a web of sticky goo
When Charizard came out of the blue
He started beating up poor Spinarack
But they both fell victim to a Close Combat
But before Gary could call his cheerleader brigade
Gengar and Haunter rose out of their graves
Pulled an AK-47 from inside Haunter's mouth
And blew Gary Oak away with an ouchy ouch ouch
Till they ran out of bullets and they ran away
Because Magnezone came to save the day
This is the Ultimate Battle of Pokemon Destiny
Bug-Types, Ghost-Types, and explosions
As far as the eye can see
And only one will survive I wonder who it will be?
This is the Ultimate Battle of Pokemon Destiny
Haunter took a bite out of Magnezone
To which he shouted "You just got owned!"
Then Spinarack got up now evolved to Ariados
And Hitmonchan Mega Punched him the nose
Gary was injured and trying to stay focused
When Gengar came back with a sleepy Hypnosis
But something caught his leg and he tripped
Attack Form Deoxys took him out with his whips
He saw Ash Ketchum coming up from behind
So he charged a Hyper Beam but couldn't finish in time
Cause Gary Oak threw an Ultra Ball but he missed
And Hitmonchan deflected it with his fist
Then he jumped in air and did a somersault
While big stupid Gengar tried to pole-vault
Onto Magnezone, but they collided in the air
Then both got hit with Haunter's Glare
This is the Ultimate Battle of Pokemon Destiny
Steel-Types, Fighting-Types, and explosions
As far as the eye can see
And only one will survive I wonder who it will be?
This is the Ultimate Battle of Pokemon Destiny
Angels sang out with a hand on their hip
Down from the heavens descended Mudkip
Who delivered an Earthquake that could shatter Sootopolis
Underneath the feet of Attack Form Deoxys
Who fell to the ground due to crappy defense
When meanwhile Gary ran into a fence
Mudkip laughed at the dumb little guy
And Water-Gunned Gary in between the eyes
But then Nidoran the girl and Nidoran the boy
Darkrai, Mewtwo, Chansey and Nurse Joy
Dialga, Palkia, and Origins Giratina
Maylene, Crasher Wake, and Gardenia
Professor Oak, Professor Rowan
Every single form of Rotom
Team Rocket's Meowth and the talking Slowking
Brock with his rocks and Misty with Seaking
All came out of no where lightning fast
And kicked Mudkip in his mud-fish ass
It was the mightiest battle the world ever saw
With newbie trainers staring in total awe
The battle raged on for a century
Many lives were claimed till eventually
The champion stood, destruction in his trail
Pikachu with a half-missing tail
This is the Ultimate Battle of Pokemon Destiny
Electric-Types, and explosions
As far as the eye can see
And only one will survive I wonder who it will be?
This is the Ultimate Battle
(This is the Ultimate Battle)
This is the Ultimate Battle
(This is the Ultimate Battle)
This is the Ultimate Battle…..of Pokemon Destiny