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  • Technical Documentation:

    Pokémon Breeding


    Now, as you may know, I [original author, not evandixon] have written a few guides to a few things on the project pokemon forums and I thought this guide was pretty good and in depth so I put it here. I edited it a little to make it more suitable for Wiki.

    I hope all readers appreciate it and find it helpful EDIT: Sorry, I found it very confusing and not very Wiki, so I put up the guide I wrote and replaced a lot. Not to mention the amount of errors I spotted while editing <.<

    Intro Lots of people know how to breed, but not quite how to IV breed or what influences what. Here I will break it down into simple steps and lists of what effects breeding and outcomes of it.

    What Breeding is:

    Breeding can be your way to get multiples of the same pokemon, or for filling up your Pokedex with Baby Forms, but most importantly breeding is what many players do to get a pokemon for competitive play. Breeding creates legitimate Pokemon, though it takes lots of patience to get something worth while.


    How it happens:

    The Day Care Center attendants are positive they have no clue, but most people who are old enough to understand reproduction know what it is. Leave a female Pokemon with a Male (or any with a Ditto) and if they like each other they will breed and create an Egg. If it is in the Ditto Group (Check Below) it could only be bred with a Ditto. If it is classified in the Cannot be Bred Group (Also check below), as the name tells, it cannot be bred.


    Gender Contributions

    Females of the pair determine the species of the offspring. So breeding a male Tyranitar with a female Swampert will yeil a baby Mudkip, not a Larvitar.
    If one of the parents is Ditto, then the offspring's species will match with the other parent's species; that means that you cannot hatch a Ditto.
    Males of the pair may determine Egg moves so long as the father knows it and the offspring are able to learn it. Egg Moves and TM moves are passed by the males.
    Females may pass their nature to the offspring by holding an Everstone. This merely increases the chance of the nature being inherited, so other natures may also still be gained.
    Both parents influence IVs of the offspring. More of this is explained under the IV section.
    Both parents may pass moves gained by level up so long as both parents know the move and the baby can learn it as well.
    If the parents are from different games, there is an increases chance of getting a shiny.


    Egg Groups

    NOTE: Some Pokemon have multiple egg groups. They can breed with any gender compatible Pokemon that is in any of their egg groups. You can use these Pokemon to help get your egg moves from one group to another, and perfect your chain bred Pokemon. Ditto breeds with every Pokemon that can breed, and the cannot breed section cannot breed with anything. The Ditto egg group Pokemon ONLY breed with Ditto.



    Abomasnow,Bayleef, Bellossom, Bellsprout, Breloom, Bulbasaur,Cacnea, Cacturne, Carnivine, Cherrim, Cherubi, Chikorita,Exeggcute, Exeggutor,Gloom, Grotle, Hoppip,Ivysaur, Jumpluff,Lombre, Lotad, Ludicolo,Meganium,Nuzleaf, Oddish, Paras, Parasect, Roselia, Roserade Seedot, Shiftry, Shroomish, Skiploom, Snover, Sunflora, Sunkern, Tangela, Tangrowth, Torterra, Tropius, Turtwig, Venusaur, Victreebel, Vileplume, Weepinbell


    Ariados,Beautifly, Beedrill, Burmy, Butterfree,Cascoon, Caterpie, Combee,Drapion, Dustox,Flygon, Forretress, Gligar, Gliscor, Heracross,Illumise,Kakuna, Kricketot, Kricketune, Ledian, Ledyba,Masquerain, Metapod, Mothim,Nincada, Ninjask,Paras, Parasect, Pineco, Pinsir Scizor, Scyther, Shuckle, Silcoon, Skorupi, Spinarak, Surskit, Trapinch,Venomoth, Venonat, Vespiquen, Vibrava, Volbeat,Weedle, Wormadam, Wurmple,Yanma, Yanmega,


    Aerodactyl, Altaria, Chatot, Crobat, Dodrio, Doduo, Farfetch'd, Fearow, Golbat, Honchkrow, Hoothoot, Murkrow, Natu, Noctowl, Pelipper, Pidgeot, Pidgeotto, PidgeySkarmory, Spearow, Staraptor, Staravia, Starly, Swablu, Swellow, Taillow, Togekiss, Togetic, Wingull, Xatu, Zubat


    Abra, Alakazam, Buneary, Cacnea, Cacturne, Chimchar, Croagunk, Drowzee, Electabuzz, Electivire, Hariyama, Hitmonchan, Hitmonlee, Hitmontop, Hypno, Illumise, Infernape, Jynx, Kadabra, Lopunny, Lucario, Machamp, Machoke, Machop, Magmar, Magmortar, Makuhita, Medicham, Meditite, Monferno, Mr. Mime, Sableye, Spinda, Toxicroak, Volbeat



    Froslass, Geodude, Glalie, Golem, Graveler, Nosepass, Onix, Probopass, Snorunt, Steelix, Sudowoodo


    Banette,Castform, Chimecho,Drifblim, Drifloon, Dusclops, Dusknoir, Duskull,Gallade, Gardevoir, Gastly, Gastrodon, Gengar, Grimer, Gulpin,Haunter,Kirlia, Koffing,Magcargo, Misdreavus, Mismagius, Muk,Ralts,Shellos, Shuppet, Slugma, Spiritomb, Swalot,Weezing, Wobbuffet


    Absol, Aipom, Ambipom, Ampharos, Arbok, Arcanine, Bibarel, Bidoof, Blaziken, Buizel, Buneary Camerupt, Chimchar, Combusken, Cyndaquil Delcatty, Delibird, Dewgong, Diglett, Donphan, Dugtrio, Dunsparce Eevee, Ekans, Electrike, Empoleon, Espeon, Exploud Farfetch'd, Flaaffy, Flareon, Floatzel, Furret, Girafarig, Glaceon, Glameow, Golduck, Granbull, Growlithe, Grumpig Hippopotas, Hippowdon, Houndoom, Houndour, Infernape, Jolteon, Kecleon, Leafeon, Linoone, Lopunny, Loudred, Lucario, Luxio, Luxray, Mamoswine, Manectric, Mankey, Mareep, Mawile, Meowth, Mightyena, Miltank, Monferno, Nidoking, Nidoran (F), Nidoran (M), Nidorino, Ninetales, Numel, Nuzleaf, Pachirisu, Persian, Phanpy, Pikachu, Piloswine, Piplup, Ponyta, Poochyena, Primeape, Prinplup, Psyduck, Purugly, Quagsire, Quilava, Raichu, Rapidash,Raticate, Rattata, Rhydon, Rhyhorn, Rhyperior,Sandshrew, Sandslash, Sealeo, Seedot, Seel, Sentret, Seviper, Shiftry, Shinx, Skitty, Skuntank, Slaking, Slakoth, Smeargle, Sneasel, Snubbull, Spheal, Spinda, Spoink, Stantler, Stunky, Swinub Tauros, Teddiursa, Torchic, Torkoal, Typhlosion Umbreon, Ursaring Vaporeon, Vigoroth, Vulpix Wailmer, Wailord, Walrein, Weavile, Whismur, Wooper Zangoose, Zigzagoon

    Water 1

    Azumarill,Bibarel, Bidoof, Blastoise, Buizel,Clamperl, Corphish, Corsola, Crawdaunt, Croconaw Delibird, Dewgong, Dragonair, Dragonite, Dratini,Empoleon,Feebas, Feraligatr, Floatzel Gastrodon, Golduck, Gorebyss,Horsea, Huntail,Kabuto, Kabutops, Kingdra,Lapras, Lombre, Lotad, Ludicolo,Mantine, Marill, Marshtomp, Masquerain, Milotic, Mudkip,Octillery, Omanyte, Omastar Pelipper, Piplup, Politoed, Poliwag, Poliwhirl, Poliwrath, Prinplup, Psyduck,Quagsire,Relicanth, Remoraid Seadra, Sealeo, Seel, Shellos, Slowbro, Slowking, Slowpoke, Spheal, Squirtle, Surskit, Swampert, Totodile,Walrein, Wartortle, Wingull, Wooper

    Water 2

    Barboach, Carvanha, Chinchou,Finneon,Goldeen, Gyarados,Lanturn, Lumineon, Luvdisc,Magikarp, Octillery, Qwilfish, Relicanth, Remoraid, Seaking, Sharpedo, Wailmer, Wailord, Whiscash

    Water 3

    Anorith, Armaldo,Cloyster, Corphish, Corsola, Cradily, Crawdaunt,Drapion,Kabuto, Kabutops, Kingler, Krabby,Lileep,Omanyte, Omastar,Shellder, Skorupi,Tentacool, Tentacruel


    Abomasnow, Aggron, Ampharos, Aron Bastiodon, Bayleef, Blastoise, Bulbasaur, Charizard, Charmander, Charmeleon, Chikorita, Cranidos, Croconaw, Cubone, Exploud, Feraligatr, Flaaffy Gabite, Garchomp, Gible, Grotle, Grovyle, Ivysaur, Kangaskhan, Lairon, Lapras, Larvitar, Lickilicky, Lickitung, Loudred, Mareep, Marowak, Marshtomp, Meganium, Mudkip, Nidoking, Nidoran (F), Nidoran (M), Nidorino, Pupitar, Rampardos, Rhydon, Rhyhorn, Rhyperior, Sceptile, Shieldon, Slowbro, Slowking, Slowpoke, Snorlax, Snover, Squirtle, Swampert, Torterra, Totodile, Treecko, Tropius, Turtwig, Tyranitar, Venusaur,Wartortle, Whismur


    Azumarill, Blissey, Breloom, Castform, Chansey, Cherrim, Cherubi, Clefable, Clefairy, Delcatty, Froslass, Glalie, Granbull, Hoppip, Jigglypuff, Jumpluff, Marill, Mawile, Minun, Pachirisu, Pikachu, Plusle, Raichu, Roselia, Roserade, Shroomish, Skiploom, Skitty, Snorunt, Snubbull, Togekiss, Togetic, Wigglytuff


    Altaria, Arbok, Bagon, Charizard, Charmander, Charmeleon, Dragonair, Dragonite, Dratini, Ekans, Feebas, Gabite, Garchomp, Gible, Grovyle, Gyarados, Horsea, Kingdra, Magikarp, Milotic, Salamence, Sceptile, Seadra, Seviper, Shelgon, Swablu, Treecko

    Cannot breed

    Arceus, Articuno, Azelf, Azurill, Bonsly, Budew, Celebi, Cleffa, Cresselia,Darkrai, Deoxys, Dialga, Ditto, Elekid, Entei, Giratina, Groudon, Happiny, Heatran, Ho-oh, Igglybuff, Jirachi, Kyrogre, Latias, Latios, Luigia, Magby, Mantyke, Mesprit, Mew, Mewtwo, Mime Jr., Moltres, Munchlax, Nidoqueen, Nidorina, Palkia, Pichu, Raikou, Rayquaza, Regice, Regigigas, Regirock, Registeel, Riolu, Shaymin, Smoochum, Suicune, Togepi, Tyrogue, Unown, Uxie, Wynaut, Zapdos


    Baltoy, Beldum, Bronzong, Bronzor,Claydol, Electrode, Lunatone, Magnemite, Magneton, Magnezone, Manaphy, Metagross, Metang, Phione, Porygon, Porygon2, Porygon-Z, Rotom, Shedinja, Solrock, Starmie, Staryu, Voltorb


    Types of Breeding

    Ditto: Ditto may be all too useful for breeding, but its only good for when you just need a quick copy or baby. Ditto can breed with anything that has an egg group, any gender, and essentially every Pokemon (Unless they are not allowed to breed; Legends and Babies). They are essential in breeding and you should get at least a few with different natures. Most people use Dittos with different natures to get a Pokemon with the nature they want.
    Same Species Breeding: Any Pokemon that is the same species (A Pikachu with another Pikachu) will breed so long as one is male and the other is female.
    Same Family Breeding: By family, this means the evolutionary line. A Pikachu can breed with a Raichu for instance, again so long as one is male and the other is female.
    Same Egg Group Breeding: Sometimes the hardest, although best for competative play. This means any pokemon in the same egg group can breed so long as one is male and the other is female. So essentially a Skitty and a Wailord can breed because they are both in the same egg groups. This can make for interesting pairing (Zangoose and Seviper are both in the same egg group and yes, they can breed no matter what the pokedex says)
    There are some pairs of Pokémon species where the male and female are treated as different Pokémon. However, they can breed with each other. The egg will either hatch into a male or a female varient of the species (The Nidorans for instance). Although breeding the male species with Ditto will not produce the female counterpart.
    Held Item Breeding: Some Pokemon may only produce its baby form when holding a specific item, aka Incense.


    Passing Moves Down

    The moves obtained by a Pokémon when hatching are as follows:

    The Pokémon will start with any moves that it would learn at a level of 5 or lower.
    The Pokémon will start with any moves that it would learn by leveling up only if both parents know the move.
    The Pokémon will start with any TM or HM moves that the father knows and the baby can also learn by machine.
    The Pokémon will start with any Egg moves that the baby can learn and the father knows.
    Volt Tackle is a special move only learnable by Pichu. When breeding a Pikachu or Raichu holding a Light Ball, the offspring will know the move Volt Tackle. It should be noted that the parent need not know the move itself, and is not required to be of any specific gender; however, a male Pikachu or Raichu has to breed either with a female counterpart or with Ditto so that the offspring is, in fact, a Pichu.

    The moves will take precedence in the order listed, and if there are more than four moves to learn, the moves will start being overwritten much like when leveling up at the Pokémon Daycare.


    Importance of Egg Moves

    Egg moves are sometimes extreemly useful to have on a Pokemon. Rather then having a Pokemon that only knows moves from TMs, Tutors, or from Levelup, Egg Moves can only be bred into a Pokemon and thus make them stronger then a standard wild Pokemon.

    A Pichu (or one of its evolutionary line) that knows Volt Tackle is a great example of this.


    Chain Breeding:

    Chain Breeding is simply breeding multiple Pokemon in different Egg groups that can also breed together. This is also how you get a Pokemon with multiple egg moves. This also includes any breeding done to get a good parent for the final offspring.

    Breeding a male Smeargle to get good IVs, Sketching Punishment, then breeding with a female Sneasel with good IVs to produce a baby Sneasel with good IVs and Punishment as a move is a quick example. (quick to write, though the time involved for breeding can be hours to weeks depending on luck)


    IV Breeding:

    IVs are individual values and they are hidden from the view of the trainer. However with IV calculators you can find on the internet you can find out your pokemon's IVs. These individual values are what makes every pokemon different as far as stats go. The individual values are numbers that range from 0-31 and below is a number for each stat.

    Sp Atk
    Sp Def

    Depending on the number the pokemon's IV numbers can effect the growth of a pokemon in certain areas of their stats. IVs add their value to the stat slowly throughout leveling. Essentially they can only be seen on level 100 Pokemon as their stats have been maxed for their level. For example, a pokemon with a 31 IV in speed will have 31 more points in speed then one with a 0 IV in Speed. Even a 1 point difference between a 30 IVed Pokemon and 31 IVed Pokemon can make all the difference in compatative play.

    Many People do not understand this no matter how simple the concept may be, so I'll work it into a really short term at the end. This is based off of DPPT breeding which works the same way as Emerald in most cases. First, a random IV is passed from one of the parents to the baby. Afterwards, a random IV of any stat other than HP, is inherited from either parent to the baby. If this IV is from the same stat as the first IV (not necessarily the same IV value, depending on whether or not the same parent passed it on), it will override it. Finally, another random IV of any stat other than HP and Defense, is passed from one of the parents to the baby. This IV will override any of the previous two if it is from the same stat. The remaining stats (a number ranging from 3 to 5) are determined at random, again with the possibility of one or more IVs coinciding with those of the parents.

    Simple Term: Some IVs are random, while others are inherited by the parents. So essentially the better IVs the parents have the better chance of getting good IVs on the offspring.


    Nature Breeding

    For those of you who want to have a specific nature so that it makes a great match with IV breeding, you have probably thought of: keep breeding and hatching and i'll eventually get a good nature and high IV pokemon. This may cause a lot of stress and will take a long time especially when you want multiples of the same pokemon with good nature/IV's. You can give one of the pokemon you are breeding (if you are breeding a male and female) or the pokemon which is not Ditto (If you are breeding with Ditto) an Everstone. In-game-uses shows that this hold item prevents pokemon from evolving but it also has another use. Holding this item while breeding, will ensure the offspring to have a 50% chance of being the same nature as the nature of the pokemon holding the everstone.


    Breeding Elite

    This type of breeding is best left to those who know what they are doing. It involves breeding IVs, Natures, Moves, and the correct Species to get a perfect Pokemon for competative play. Here is my quick example of a legitimate bred pokemon loaded into a ROM for better screenshots:


    Its stats are so high because I bred good IVs into it along with training it in Attack and Speed to max out those stats. I also bred in the Egg Move Ice Punch from having a Medicham Father in its line. It learned Ice Shard by level up as a Sneasel, then after it evolved I went to the move tutor to have it remember Night Slash, and Brick Break came from a TM (can also be inherited as an Egg move from the father if it knows a TM or HM move the baby may learn). Its nature was inherited by a female sneasel with the Jolly Nature holding an Everstone. So thats my example of a quick breeding chain using all of the breeding tips and tricks to create a perfect pokemon! (of course, luck is such a huge factor it took about an entire day consisting of much breeding, many sneasels, and lots of calculating)


    When that egg will be ready for pickup?

    The rate of your pokemon being able to have an egg relies on your ID number [TID (Trainer ID) and SID (Secret ID)] and the species of the pokemon. You can tell the chances of your pokemon being able to have an egg by talking to the Old Man near the fence. (The DayCare Keeper's Husband) When he is an extra step forward it means that your egg is ready and you will be able to take it if you have a free slot in your party. When that man has your egg ready for hold, you cannot take the pokemon back from the DayCare Lady before you take the egg from the Old Man.

    Chance Guide:

    Parents/Pokemon in Day Care are the same species/pokemon and have different ID's The Old man will say: "The two seem to get along very well." The Chance of receiving an egg at the required time for pickup will be 70%.

    Parents/Pokemon are same species/pokemon and have same ID's OR are different species/pokemon and have different ID's The Old man will say: "The two seem to get along." The Chance of receiving an egg at the required time for pickup will be 50%.

    Parents/Pokemon are different species/pokemon and have the same ID's The Old man will say "The two don't seem to like each other." The Chance of receiving an egg at the required time for pickup will be 20%.

    Parents/Pokemon are in different egg groups The Old man will say "They prefer to play with other pokemon than each other." The Chance of receiving an egg at the required time for pickup will be 0%.

    • at the required time for pickup - means that when the time arrives because you need to walk a certain amount of steps before the man is to give you the egg.


    Hatching that Egg

    Name: Magma Armor
    Effect: User cannot be frozen.
    Field: Eggs in the party with the user hatch in half the time.
    Name: Flame Body
    Effect: 30% chance of inflicting a burn on contact.
    Field: Eggs in the same Party as this Pokemon hatch twice as fast.

    Slugma and Magcargo are widely considered THE best egg hatchers, because they are readily available in D/P/Pt, and the 2 abilities they have are the 2 above ones.

    Other then that it takes a variable amount of steps to hatch the egg depending on the species. Generally a tip to keep in mind is when hatching an egg depending on how good the species is will reflect in how long its going to take. Magikarp is generally weak so its fast to hatch, however rare and strong pokemon like Larvitar will take longer. The best places to ride back and forth are: through Solaceon, theres a one step wide path that gives you 123 steps up, then 123 steps down. Its good because you can quickly change the Pokemon in the daycare, and get more eggs as well without flying. SeaBreak Path: This place is ONLY recommended if you have an Action Replay. If you do, then use the run through walls cheat to get through the Victory Road Area, and bike up and down. Its the longest area in a Pokemon game, so its ok if you have easy access to it. Then, there's the Cycling Road. Its nice if your doing something else, because you only have to press up, when you reach the top, it goes down automatically.

    Floaroma Town Rumor: It is rumored that if you hatch an egg in Floaroma Town (or Hearthome City) it will have a higher chance of being a female. I first believed this rumor was true though I never actually used it, however I did decide to test it after finding a similar rumor just worded differently and with a percentage rather then 100%. After thinking about it I developed a theory that I proved correct with 5 Houndour Eggs. Here is my theory:

    The contents of a Pokemon egg are generated when you receive it from the Daycare man. All IVs, Nature, Ability, Gender, and Moves are generated when you receive the egg.

    I only needed one egg, but I tested 5 to be sure. I took the first two eggs and saved after receiving them then hatched them in Floaroma Town. One was male the other was female (I was using Houndours because they have a 50-50 chance of being male or female). I recorded their nature, ability, gender, and stats before soft resetting then hatching the same two eggs elsewhere (Route 210 to be exact). They hatched exactly how I recorded them. One male, one female, with the same nature ability and stats as when they first hatched. The second two eggs I saved before I received them and hatched them in Floaroma Town. Again one was male one was female, so I recorded their gender, nature, stats, and ability before soft resetting and receiving the eggs again to hatch. The second time I hatched the two eggs both were male and had different natures and one had a different ability. The last egg was just a confirmation to be sure my first set of results and both were confirmed along with my theory. I do not know who started this rumor but it has now been tested and proven false! Sorry guys, Floaroma Town is not a magical egg hatching place since the baby's stats are determined when you receive the egg, not when it hatches.


    Happiny takes the longest to hatch from an egg In generations II-III, bred Pokemon were hatched at level 5, while you could find Wild Pokemon from level 2. Manaphy is a legendary, yet it both hatches from an egg, and can breed. (However, Phione, the offspring, does not evolve into a Manaphy) Incest is possible in generation IV In the Anime, Ash rescues a baby Lugia named Silver. Yet, Lugia cannot breed.

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