Disclaimer: I do not own Sgt. Frog/Keroro Gunsou or Pokemon. (Except for the ideas of the transformations)

A Poké-Kero Story

Chapter 1: A New Pokemon?

It is a beautiful day as our heroes, Ash, Brock, Dawn, and Pikachu, just arrived back to Pallet Town to visit after a long journey. We now see them all standing in front of Ash's house, waiting for Ash's mom to open the door. The door opens as a young woman appeared behind.

"Oh, Ash, you're back!" She cried as she ran to Ash and gave him a big hug. "You came back so soon that I didn't have time to prepare."

"Yeah, mom, I'm so glad to see you too," Ash chuckled embarrassingly as his mother continues to hug him tightly, "Now, mom, can you let go… I'm sort of can't breathe…"

"Oh, I'm sorry." She said, releasing her grip over Ash, "I'm always so happy to see after your long Pokemon journey."

"That very nice to hear, mom, so how things been here. Is everything okay?"

"Oh everything is okay, dear," She replied, then notice Dawn standing behind him, "Oh, and whose this?"

"Mom, meet Dawn, she's a friend of mine that journey with me throughout the Sinnoh." Ash introduced, he turn to Dawn, "Dawn, this is my mother."

"Hi, Mrs. Ketchum, it's so nice to meet you." Dawn greeted.

"It's so nice to meet you too, Dawn," Ash's mom greeted back, "please make yourself at home. I will be working in the kitchen, so if you need anything, ask Ash or me here, okay?"

"Thank you," Dawn and Brock said.

However, just before they all step in though, they heard another calling towards outside.

"Hey Ash!"

An orange hair girl ran towards Ash's house wearing a yellow t-shirt and shorts. It was Misty, Ash's old friend in Kanto.

"Hey, it's Misty." Brock said, waving to her.

"Hey, Misty," Ash called back, waving to her as well, "long-time no see!"

Misty rushed over to the two and greeted them. She crouched down and greeted Pikachu as it cheered in joy seeing its old friend. She noticed Dawn standing behind the two.

"So, who is this, Ash?" She asked, "A friend of yours."

"Yeah, I met her in the beginning of my journey in Sinnoh."

"Hi," Dawn greeted, as she shook Misty's hand, "I'm Dawn."

"Hi, Dawn," Misty greeted back, as she shook back, "I'm Misty, it's nice to meet you."

Just then, a large explosion appeared from a near by forest. The five turn towards the forest seeing three-color lights shot out and scattered into different directions.

"What was that?" Brock asked nervously.

"Don't know," Ash replied. Without thinking, he started running towards the forest, "we should check it out. Come on Pikachu."

"Pika," the little electric mouse cheered and ran with its friend.

"Hey, Ash!" The others called. However, it was too late, Ash have already made up his mind and was already a ¼ away from the forest.

Meanwhile, the smoke cleared up, revealing a human and two Pokemon, unconscious. One of the Pokemon got up to its feet and groan in confusion. Its vision was still a blur after its crash. It stumbled over to a pond near by and looked at its own reflection. Strangely to itself, it had two distinctive cheeks shape like a hand with only three fingers. It had some kind of fin on its head and a tadpole tail behind its hind legs. You would know now, that this Pokemon would be a Mudkip, a water-type Pokemon that looks like an amphibian. However, this one was much different. It had yellow cheeks and tail, and a small red star on its forehead, and on its belly was a large yellow star.

Its vision finally became cleared and found its own reflection looking unknown to it. Sweat formed behind its head as it began examining own body.

Wait a minute, what is this ugly thing that stands before me? It cannot be…no…no, I will not accept this! This cannot be happening, what gives? No…No…

Suddenly, there was a large outburst of terror that even Ash could hear as he get closer to the explosion site.

"GERO~~~~~!"

Finally, Ash made it towards the location along side with Pikachu. They did not notice that a person was lying on the ground near by. However, they discovered the Pokemon that yelp in terror, now running around in circle in fear.

"Whoa! What's that?" Ash yelled, grabbing the attention of the green "Mudkip". "It looks like a Mudkip cover with green slime or something."

Hearing that, the green Pokemon was startled and enrage.

"Green SLIME!" It roared, which shocked Ash and Pikachu, "How dare you call me a Mud pimp cover with green slime!"

"Whoa! It can talk!" Ash exclaimed in fright. "I wonder what kind of Pokemon this is."

"Poke-wha?" It asked as Ash pulled out his Pokedex. "What's that you pulling out, Pekoponian?"

"It's a Pokedex; it's like an encyclopedia of Pokemon." Ash replied as he open it.

"Gero…well-well, I don't think I would be in such a thing that is too primitive now…" the green Pokemon announced so casually and danced in joy.

However, the Pokedex replied:

Kerokip, the alien-frog Pokemon. It is a new vary of Pokemon that came from outer space that is somewhat related to the Mudkip family. Each of these alien-frog Pokemon is different in names, appearances, and ability, and each are consider being one-of-a-kind specie. However, they are still considering being water-type Pokemon. Due to living outer space, they were able talk and to communicate with humans without using psychic.

"…Gero?" the green Pokemon said, startled, shocked, and confused due to the information, "Impossible, how did I ended up in the encyclopedia? Am I really that famous across time and space too?"

Ash closed his Pokedex and burst out in delight.

"YEAH!" He cheered, "A new Pokemon that no has never seen before! This is great!"

(Anime Sweat Drop) "Eh, what's so great able that?"

"All right, then. Pikachu lets go!"

"Huh?"

Ash and Pikachu now stand before the nervous "Kerokip" about a few feet away.

"All right, Pikachu," Ash called. "Use your Thunderbolt Attack!"

The little mouse lunge to the air right above the "Kerokip", who was too terrified to move.

"Pika…Chu~~!" It cried as a burst of lightning shot towards the little alien-frog Pokemon.

"Gero~~~~!" The little frog cried in terror as the blast sends him into the air, causing an afro to pop out of its head.

"We did it." Ash cheered as the "Kerokip" crash-landed back to the ground, fried.

"Ash~~~!" Ash heard. He turned around to find his friends running towards him.

"Oh, hey guys," he said, staring at his friends who are gasping for air in front of him. "What took you so long?"

"You left and ran so quick!" Misty barked and anime whack him, "How were we suppose to keep up!"

"Hey, but you're just in time." Ash said, he pointed at the "Kerokip", "Me and Pikachu are about to catch a one-of-a-kind Pokemon that can talk."

"Ash, you know Pokemon can only talk using psychic (excluding Meowth)." Misty corrected in disappointment.

"Not this one." Ash said.

"I don't know Ash," Brock said, "You're probably imagining things."

"Yeah," Dawn agreed. "Who heard of a Pokemon that talk without using psychic (besides Meowth)?"

Suddenly, the "Kerokip" rose up, back on to its feet, grabbing everyone's attention.

"Gero…" it spoke.

"See," Misty pointed out, "You're probably just hearing things. (Hey why does it have an afro?)"

However…

"I thought I was going to die." The "Kerokip spoke again.

Suddenly, there was a long pause of silence among the humans. The "Kerokip" looked over and blinked in confusion.

"What? Have you never seen a talking frog before?"

Another long pause, and then…

"EH~~~~! It talked!" Everyone but Ash and Pikachu yelled and stood in an "unnecessary gesture".

"No, DUH! I'm not stupid you know."

"It talked again!" They yelled.

"All right, guys, quit it." Ash said, annoyed.

"That's right! Stop it!" The "Kerokip" agreed.

"Once I capture it, you guys can question it later."

"Yeah…Hey-Hey! You cannot do that! Don't you know who I am?"

"WHO?" Everyone asked as the "Kerokip" anime fall.

"Okay, fine." It began, "I'll tell you, I'm the commanding officer of the space invasion force known as the Advance Recon Massive Pekopon Invasion Team, with an unfortunate acronym, of the 58th Planet of the Gamma Storm Cloud System. No, I am not the one you call a "Kerokip", I am a Keronian from planet Keron, known as Sergeant Keroro! In brief, I am to prepare for Pekopon invasion, Pekopon as in Earth."

"AN ALIEN!" Ash's friends yelled.

Oh, it has seems that I have struck fear into my opponents allies. Heh, heh, man, I am cool. The "Kerokip" or Keroro thought deviously.

"Yeah, yeah…" Ash said carelessly, pulling out a Pokeball, "So, where were we?"

(Keroro Anime vein pop) "Hey you! Do not ignore my story!"

"You could tell me all about it when I catch you."

"GERO~~!" Keroro cried.

"Pokeball…" Ash cried as he aimed at Kerokip/Keroro, and followed by a toss, "…GO!"

Just as the ball, almost make contact…

"Tamama Impact!"

From out of nowhere, a huge yellow blast burst out in front of the Kerokip, annihilating the flying Pokeball. Ash and Pikachu jumped back in shock while the others mouths drop in fear.

"Are you okay, Mister Sergeant Sir?" A childish voice asked as it landed front Keroro.

It was another alien-frog Pokemon. Except its skin was black and it had a green and blue Japanese new driver sign on its forehead and belly. Its eyes were much more adorable than the Kerokip and its tail was white and looked exactly like a real tadpole tail.

"Uh…Private Tamama!" Keroro exclaimed.

What do you think? Review please... or else I can't go on that well or improve.