Egg Group

**Egg Groups** (Japanese: **タマゴグループ**, *Egg Group*) are, as defined by Bulbapedia, categories assigned to Pokémon to determine which can breed and make Eggs with each other. Along with Breeding and Pokémon Eggs, they were established canonically in Generation II. Like Types, Pokémon are given one or two Egg Groups.

Officially, there are 16 Egg Groups, although in the Megaverse series the number is expanded to 19, the removal of the 'Unknown Gender' Egg Group non-withstanding.

## Summary

Egg Groups are based on the physical attributes of the Pokémon they're assigned to, to allow Pokémon with similar attributes to each other to breed. The system is not 100% fool-proof, however, as it allows very distinct Pokémon to breed with each other, with a, rather infamous, canonical example being the Whale Pokémon Wailord and the Kitten Pokémon Skitty (due to being in the Field Egg Group) or, for a MV example, the boat-shaped Light Pokémon Aprowlo and the Bazooka Pokémon Reziooka (due to being in the Mineral Egg Group).

Egg Groups tend to stay the same along a Evolutionary line, although there are many cases in which it changes. Officially, Nidoran♀ is in the Monster and Field Egg Groups, but both Nidorina and Nidoqueen are in the No Eggs Discovered Egg Group (notably due to a programming accident that stuck), and Nincada, an Bug Egg Group Pokémon, can evolve into Shedinja, a Mineral Egg Group Pokémon. However, Shedinja requires a Ditto Egg Group Pokémon to breed, as it is genderless. This trait is also in the Megaverse series. An notable example are the Makaian Starter Pokémon, being Filliage, Brazcale, and Jellowbelly; All three are Field/Grass, Dragon/Mineral, and Fairy/Water 1 respectively, but all three gain the Special Egg Group when they reach their final evolution, replacing Field, Mineral, and Fairy respectively.

Egg Groups are typically not displayed in-game, although they are often listed in official game guides, and are listed in certain side games such as Pokedex 3D or Pokémon Stadium 2. This does not extend to the Megaverse series, as they are shown in the Pokémon's Pokedex page.

Through breeding, one can link a particular move known having said move be known by either Parent. An example is Blissey, with Heal Bell. TMs are also known to be passed down, albeit from the father specifically. These are referred to as Egg Moves, and every Pokémon has a select number of Egg Moves it can learn.

## Egg Groups

Listed below are the Egg Groups, by index number and by a commonly agreed on definition.

1. Monster 1, known officially as Monster: Pokémon that are saurian/kaiju-like in nature/appearance.
2. Water 1: Pokémon that are amphibious in nature.
3. Bug: Insect-like Pokémon.
4. Flying: Bird/Avian-like Pokémon.
5. Field: Terrestrial Pokémon, the largest group.
6. Fairy: Cute or petite Pokémon.
7. Grass: Plant-like Pokémon.
8. Human-Like: Bipedal or Humanoid Pokémon.
9. Water 3: Pokémon that are similar to aquatic invertebrates.
10. Mineral: Inorganic Pokémon. Does not include Robotic Pokémon (see Cyber).
11. Amorphous: Pokémon that have no specific/defined shape.
12. Water 2: Fish-like Pokémon.
13. Ditto: A Egg Group that can breed with all other Egg Groups, regardless of gender. Does not belong solely to Ditto.
14. Dragon: Dragon/Reptile-like Pokémon.
15. No Eggs Discovered: Pokémon that cannot breed, regardless of gender. Legendaries or Baby Pokémon tend to be in this Egg Group. Originally called Undiscovered.

In the Megaverse series, 4 more Egg Groups were added.

1. Cyber: Robotic Pokémon. Does not extend to Cyborg- or Robot-like Pokémon.
2. Space: Extraterrestrial Pokémon that originate from space.
3. Special: Pokémon that are divine or demonic in ability/appearance.
4. Monster 2: Scary, monstrous Pokémon.