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The Mothra Tamagotchi (モスラのたまごっち Mothra no Tamagotchi, or simply the Mothra) is a licensed Tamagotchi that was released in Japan in July 1997 during the release of the movie Rebirth of Mothra II.


Moll and Lora

Mothra is a recurring character in the Godzilla franchise. A giant monster moth, Mothra is often portrayed as a heroic protector humanity, Japan, and the Earth. She is usually accompanied by two twin fairies, who speak on Mothra's behalf and assist with her care, including singing the song that hatches Mothra's egg.

The following text is translated from the instruction booklet:

We are Moll and Lora, sisters of the Elias family. Mothra comes from an island far, far in the south called "Infant Island". A newly hatched Baby Mothra is a tiny, weak baby. Therefore you must give it lots of "Justice Power" or it won't be able to turn into a Mothra. Mothra is a strong and beautiful Goddess; a protector of life. But sometimes, she can take the wrong path which could make her turn into something bad. At these times, you must discipline her. If Mothra gets sick, you must let her listen to us sing. For the sake of the Earth's future use love and justice to raise Mothra to be a magnificent adult.


The Mothra Tamagotchi functions much the same as the original Tamagotchi. After the clock is set, Mothra is born, and the user must care for it through various stages of its life cycle.


Unique to the Mothra Tamagotchi is a Cocoon stage that occurs between the teen and adult stages, and is depicted by a large cocoon hanging on the side of the Tokyo Tower. It will stay in this form for one hour, and then evolve into its adult phase. Once it's become a cocoon, the adult form has already been decided, and the stats in the check meter will change to reflect this.

The Check Meter


The Check meter is used to measure Mothra's status and needs. The first screen in the check meter shows Mothra's age (in days) and weight (in tons). The second screen and third screen show the Hungry and Happy meters respectively. The fourth and final screen shows Mothra's Justice meter.



There are two options for feeding Mothra. The top is for a meal and the bottom is for a snack. Meals will fill one Hungry heart and increase the weight by one ton. Snacks will fill 1 Happy heart and increase the weight by two tons. The meal is typically a leaf, but for some adults and special evolutions, it may instead be an apple or a piece of meat. The Snack option is always a cupcake.



The featured game is called the Gokigen Up game. Four holes appear, and the player must guess which hole the Mothra is hiding in by scrolling an arrow with the A button, and selecting with the B button. The game consists of five rounds, and the user must find Mothra at least three times to win. Finding Mothra 3-4 times will fill Happy by 1 unit and reduce the weight by 1. Finding Mothra all five times will fill Happy by 2 units and reduce the weight by 2.



The Mothra will occasionally poo during the day and selecting this icon will remove it. If poo is left on screen for an extended period of time, the Mothra will get sick. Up to 8 poos can fill the screen if left unattended.



Mothra will occasionally try to attack a tower. Selecting this icon will discipline it, increasing the Justice meter by 25%. This affects evolution for all characters, where a higher Justice meter will result in better characters and a lower meter will result in bad characters.

For each form it takes, Mothra will make all of its Justice calls for its current life stage within 24 hours; therefore, if a call is missed, it cannot be made up for later. Mothra will make three Justice calls of its current life stage began with 0% Justice, and two calls if the life stage began with 50%. The Justice meter may also decrease between certain evolutions.



When Mothra gets sick, selecting this icon will summon Moll and Lora, who will sing and heal it. Sometimes this takes more than once to fully heal Mothra. Leaving Mothra alone when it is sick may result in death.



When Mothra falls asleep, it will call out for the light to be turned off. They will turn back on automatically when Mothra wakes up. Turning the light off during the day has no ill effect. Different characters sleep and wake up at different times.

Attention Icon


Mothra calls to the user by beeping and lighting this icon up. Mothra will call if either the Hungry or Happy meter empties, or if it has fallen asleep. It will also call when attacking the Tokyo Tower, but will use a different sound effect from the normal Attention call. Ignoring Mothra when called for attention will have a negative impact on its evolutions and lifespan.


After a prolonged period of time, Mothra will die, leaving an image of a cross surrounded by flowers. Pressing the C button will display Mothra's final age and weight. Pressing the A and C buttons together will make a new egg appear.

If the user raises the character to adulthood or to a special stage, maintains good care of it for a week, and then stops filling the Hungry and Happy meters, an alternate version of the Death sequence will occur where just before the grave appears, the character will lay an egg. Both the instructions and official website suggest this is key to unlocking an additional secret character (Moll & Lora), although this has never been demonstrated. The egg laying will not occur if the character is a child or teen, dies of old age, or dies from sickness.



  • The Mothra Tamagotchi is the first Tamagotchi to be based on a licensed theme.
  • The idle animation (moving to the left, roaring, moving to the right, roaring, repeat) was also used for the Digimon virtual pets that debuted less than a month before the Tamagotchi Mothra. This same animation also appeared on the Genjintch Tamagotchi, shortly after the release of the first version of the Digimon Virtual Pet series. Similarly, Godzilla's spritework provides the basis for many dinosaur-like Digimon species' virtual pet sprites, DarkTyrannomon's sprites having an astounding similarity.
  • Mayura is the only character that does not come from any Godzilla or Mothra film.
  • The Mothra Tamagotchi introduced and codified several important quality of life changes to Tamagotchi virtual pets:
    • It has a faster processing unit, allowing the buttons to be more responsive and animations to move faster. This made animations such as flushing Poo or switching to or from the clock screen faster. This would not be featured on mainline Tamagotchi releases until the Tamagotchi Osutchi and Mesutchi. The Tamagotchi Angel and Mori de Hakken! Tamagotch both use the original processing unit, while all units from the Tamagotchi Ocean onward use the faster one.
    • It introduced the function of switching the clock between AM/PM format and military hour format. While several other vintage-era Tamagotchi pets also included this function, it would not become the standard until the Tamagotchi Connection.
    • It changed the order of the icons, with the Check icon now being the first icon, followed by the Food icon, the Game icon, and the Flush icon, with the remaining three (Discipline, Medicine, and Lights) moving to the bottom row. This change would be carried over to every virtual pet released since.
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