Mr. Mantis Shrimp

**Peeny-Weeny** (ぺニーチンコス, *Penīchinkosu*?), also referred to as **Mr. Mantis Shrimp** (シャコさん, *Shako-san*?) by Momo and Okarun, is a File:Mr. Mantis Shrimp's Race.svg and a cryptid known as the **Dover Demon** (ドーバーデーモン, *Dōbādēmon*?).

In *Dandadan*, he was once a supporting antagonist during the Serpo Arc, having previously worked as a hired fighter for the Serpo, in their mission to capture Okarun, in order to earn  (*Earthling translation*: money) for his son's blood transfusion but has since become a supporting character after Seiko helped in his son's recovery.

## Appearance

Mr. Mantis Shrimp is a muscular humanoid alien with an upper head of a crab. As for attire, Mr. Mantis Shrimp wears nothing but a speedo, a tie, and boxing gloves.

## Personality

Mr. Mantis Shrimp is willing to follow through on the orders he has been given from his superiors but dislikes harsh treatment, such as being caught in the crossfire of the Serpo's attacks whenever they work together or having his pay cut in half each time he performs poorly in his tasks. When engaged in combat, Mr. Mantis Shrimp has the odd habit of singing the lyrics to "Chiquitita".

## Background

On his home planet, Peeny-Weeny was married and had a child. After his wife eventually died of an illness, Peeny-Weeny desperately needed to earn money for his son's blood transfusion after he attracted the same illness as his mother. Since he was a weak member of his race, Penny-Wenny had no choice but to engage in dangerous work, which led him to become a subordinate of the Serpo.

## Synopsis

### Serpo Arc

The Dover Demon, along with Nessie, accompanies the Serpo on their mission to capture Okarun at his school to acquire his supernatural powers. After confronting him, the Dover Demon and the Serpo find themselves dealing with Aira Shiratori, a girl who also has supernatural powers. The Dover Demon fights against Aira but is unable to land a single hit on her due to her enhanced agility and is kicked up into the ceiling where his head becomes stuck. However, after the Serpo use their psychokinesis to suppress her powers, the Dover Demon sends Aira crashing back with a strong punch. He then assaults a restrained Takakaura, after the boy tries to protect Aira, but is sent flying back after Okarun launches himself, which was made possible after Momo makes her arrival to use her powers to free Okarun from the Serpo's psychic influence.

After exhausting himself, the Serpo forcibly enhances the Dover Demon to fight for them in spite of its objection to use this last resort. Now rejuvenated, the Dover Demon throws a barrage of shockwave punches at Okarun and Aira while they are bound by the Serpo's psychokinesis. However, Momo counters by repelling the aliens' psychokinesis with her own and allows Okarun and Aira to fight back. The Dover Demon manages to hold his own against Aira, since the girl could not see his attacks coming, but is soon overwhelmed after Okarun helps Aira dodge the Dover Demon's punches since he is able to see them clearly. The conflict between the two sides are then interrupted after the water beneath their feet starts to rise from Nessie's sudden arrival.

As Momo, Okarun, and Aira try to escape after Nessie starts to attack the Serpo, the Dover Demon throws an underwater shockwave punch that sends Aira up towards the watery ceiling and continues his assault on Okarun and Momo. However, after being underwater for too long, the Dover Demon quickly swims up to get some air and swims back down to throw more of his strengthen shockwaves punches at Okarun and Momo. He then becomes surprised by Momo's strategy to save Aira from drowning by propelling Okarun up using her psychic powers while riding on his back. After commenting on their escape being clever, the Dover Demon turns around to see a Serpo floating in the water and ask that he give him more time to defeat the humans. However, he becomes spooked to realize that it was a floating head and wonders as to how this happened. Seeing as how the situation has gotten worse with Nessie out of control, a surviving Serpo swims towards the Dover Demon to fuse himself with both creatures.

After the Serpod Dover Demon Nessie is defeated by Okarun, the Dover Demon somehow manages to survive and goes after his enemies for the sake of earning money for his family. He first encounters Momo and Aira outside the school and attempts to attack them. However, after being severely weakened, the Dover Demon falls in front of them unconscious. Momo, Aira, and Okarun then decide to take the Dover Demon to Momo's house to help him recover.

After waking up from a dream he had about him and his child, the Dover Demon finds himself bandaged up and looked after by Momo, Okarun, Aira, and Seiko. He then looks down to find a plate of curry beside him, to which Momo explained that they prepared it for him despite not knowing what he eats. Seeing as how it was the first time in his life that he was treated kindly, the Dover Demon becomes emotional and promises that he will no longer try to harm them. After finish having dinner with the group, the Dover Demon tells them about his predicament with not being able to earn enough money to pay for his sick son's blood transfusion. Okarun tells the Dover Demon that he is willing to help by offering his genital's but is turned down since the alien did want to cause him and the others any problems as promised. Before showing himself out, Seiko stops him and tells the Dover Demon that she might be able to help after noticing how his blood gave off a familiar scent. After drinking a carton of milk given to him, the Dover Demon notices how the milk is the same as his race's blood, to which Seiko explains that she could offer the Dover Demon a cow from a dairy farmer she knows to help with his son's blood transfusion. With the cow acquired on his spacecraft, the Dover Demon thanks the humans for their help and tells them that he will never forget the debt he owes them.

At some point, the Dover Demon finds that the cow was not producing any milk and realized that milking the animal would be a problem in his home world due to the planet being filled with a water substance, leading to him making the decision to take his son and live on Earth to supply him with a constant intake.

### Cursed House Arc

The Dover Demon assists Seiko in helping her meet up with Momo, Okarun, and Jiji using his spaceship and fights the Evil Eye alongside her by the time they arrive. He then guides Chiquitita in using the Tsuchinoko to put out the forest fire as he takes control of the spaceship and helps Momo save Okarun from being stuck down the Tsuchinoko pit.

At the Ayase residence, the Dover Demon and Chiquitita join the others for dinner and informs them of his decision to live with his son on Earth as a farmer. As he prepares to leave, the Dover Demon tells Momo that she is welcomed to call him again if they run into any problems and lets her know that his real name is "Peeny-Weeny" after she asks what it is, only for the girl and her friends to nickname him "Mr. Mantis Shrimp" as a more fitting title.

### Evil Eye Arc

While working, Mr. Mantis Shrimp is visited by Okarun for lessons on how to throw a punch but turns him down since he believes violence is wrong.

After learning from Okarun that the Ayase house has been destroyed, Mr. Mantis Shrimp and his son help to repair it by contacting Ludris to acquire his nanoskin, successfully creating an exact replica.

### Kaiju Arc

Mr. Mantis Shrimp is visited by Okarun, Jiji, and Kinta for help translating the language of an alien girl named Bamora. He gives them his translator device but sees that it is only able to pick up a few of her words and offers to adjust them when they come back.

### Space Globalists Arc

Mr. Mantis Shrimp arrives to save a badly injured Okarun from being captured by a group of suited aliens and takes him, along with one of the aliens Okarun defeated, to the Ayase residence to help him recover. He also does the same for Aira and Jiji after coming across them badly wounded in Kamikoshi City. The next day, Mr. Mantis Shrimp becomes relieved to see Momo returning home safe, informs her of Okarun's condition, and watches as she forces Bamora to leave her house since she found out that she is connected to the group of aliens who attacked her and her friends. Shortly after, Mr. Mantis Shrimp treats to Momo's wounds as she talks to Aira and Jiji after they had woken up. After Okarun slightly regains conscious from hearing Momo and Jiji arguing until he passes out from talking to them, Mr. Mantis Shrimp puts back his life support attachment he removed, explaining to Momo and Jiji that Okarun cannot rest if his friends fight. Mr. Mantis Shrimp, Aira, and Jiji are then taken outside by Momo to see the Serpo she brought along with her, as the alien and her group have a common enemy. Hearing the Serpo's speculation of how the alien group will invade Earth in less than five days, Momo decides that their next course of action is to train to prevent this from happening. Using the nanoskin the Ayase house is constructed out of, Mr. Mantis Shrimp helps to rebuild it into a vehicle to have the group relocate to a Serpo hideout. Mr. Mantis Shrimp then takes the wheel but becomes displeased with Momo, Aira, and Jiji's complaint about his reckless driving as he transports them to the hideout.

After arriving and checking the hideout for traps, Mr. Mantis Shrimp trains with the others but performs poorly according to Aira as she corrects them on his, Momo, and Jiji's faults. He then uses the Ayase house to drive back home to Chiquitita. The next day, Mr. Mantis Shrimp returns to the site and wakes up Momo and Jiji to continue with the training. Later, Mr. Mantis Shrimp trains with Aira in a sparring match while Momo and Jiji practice combining their powers.

## Abilities and Powers

### Physical Abilities

**Immense Strength**: Mr. Mantis Shrimp has tremendous amount of physical strength, being able to throw powerful punches that are capable of breaking through walls and could send his opponents crashing back with just one hit.

### Fighting Style

**Boxing**: Mr. Mantis Shrimp is a formidable hand-to-hand combatant who uses the style of boxing against his opponents.

#### Techniques

* **Jet Punch** (ジェットパンチ, *Jetto Panchi*?): Mr. Mantis Shrimp puts all his strength into throwing a powerful punch that sends his opponent crashing.

### Forms

A heighten transformation that Peeny-Weeny was forced into after being injected with a serum from one of the Serpo's reproductive cables. In this form, Peeny-Weeny's crab appearance is altered to resemble a mantis shrimp, along with being added sunglasses. Peeny-Weeny states that he could fight for twenty-four hours while in this form, however, in actuality, the effects of the serum only last for twenty-four minutes.
 * Peeny-Weeny generating a shockwave from a single punch.
* Peeny-Weeny launching a stronger shockwave underwater.

## Trivia

* Mr. Mantis Shrimp's empowered form strongly resembles Alien Baltan from the *Ultraman series*.