Doraemon x Pokemon: Future Portal

Doraemon x Pokémon: Future Portal, also know in Japan as Doraemon x Pocket Monsters XY: Mirai Portal (ドラえもん x ポケットモンスターXY 未来ポータル) is a crossover television special set between the Doraemon and Pokémon universes. It is a co-production between Shgakukan-Shueisha Productions Co, Ltd. (who owns the rights to both the Pokémon and Doraemon franchises in Japan) and both series' respective production companies, Nintendo/The Pokémon Company, TV Tokyo, OLM, Inc., Fujiko Productions, Shin-Ei Animation, and TV Asahi.

Plot
Doraemon and friends have been accidentally teleported - and end up trapped - in their favorite video game, Pokémon. They later encounter Ash Ketchum and friends who are battling with his archenemies, the Team Rocket, and must find a way to get them home.

From Doraemon:

 * Doraemon
 * Nobita (Noby)
 * Shizuka (Sue)
 * Gian (Big G)
 * Suneo (Sneech)
 * Dorami
 * Dekisugi (Ace)
 * Nobita's Teacher (Mr. S)
 * Nobita's Mother (Noby's Mother)

From Pokémon:

 * Satoshi (Ash Ketchum)
 * Pikachu
 * Kasumi (Misty)
 * Takeshi (Brock)
 * Togepy (Togepi)
 * Professor Okido (Professor Oak)
 * Sakaki (Giovanni)
 * Musashi (Jessie)
 * Kojiro (James)
 * Nyarth (Meowth)
 * Hanako (Delia Ketchum)
 * Joi (Nurse Joy)
 * Junsa (Officer Jenny)
 * Mewtwo

Pokemon

 * Fushigidane (Bulbasaur)
 * Fushigisou (Ivysaur)
 * Fushigibana (Venusaur)
 * Hitokage (Charmander)
 * Lizardo (Charmeleon)
 * Lizardon (Charizard)
 * Zenigame (Squirtle)
 * Kameil (Wartortle)
 * Kamex (Blastoise)
 * Caterpie
 * Trancell (Metapod)
 * Butterfree
 * Beedle (Weedle)
 * Cocoon (Kakuna)
 * Spear (Beedrill)
 * Poppo (Pidgey)
 * Pigeon (Pidgeotto)
 * Pigeot (Pidgeot)
 * Koratta (Rattata)
 * Ratta (Raticate)
 * Onisuzume (Spearow)
 * Onidrill (Fearow)
 * Arbo (Ekans)
 * Arbok
 * Pikachu
 * Raichu
 * Sand (Sandshrew)
 * Sandpan (Sandslash)
 * Nidoran♀
 * Nidorina
 * Nidoqueen
 * Nidoran♂
 * Nidorino
 * Nidoking
 * Pippi (Clefairy)
 * Pixy (Clefable)
 * Rokon (Vulpix)
 * Kyukon (Ninetales)
 * Purin (Jigglypuff)
 * Pukurin (Wigglytuff)
 * Zubat
 * Golbat
 * Nazonokusa (Oddish)
 * Kusaihana (Gloom)
 * Ruffresia (Vileplume)
 * Paras
 * Parasect
 * Kongpang (Venonat)
 * Morphon (Venomoth)
 * Digda (Diglett)
 * Dugtrio
 * Nyarth (Meowth)
 * Persian
 * Koduck (Psyduck)
 * Golduck
 * Mankey
 * Okorizaru (Primeape)
 * Gardie (Growlithe)
 * Windie (Arcanine)
 * Nyoromo (Poliwag)
 * Nyorozo (Poliwhirl)
 * Nyorobon (Poliwrath)
 * Casey (Abra)
 * Yungerer (Kadabra)
 * Foodin (Alakazam)
 * Wanriky (Machop)
 * Goriky (Machoke)
 * Kairiky (Machamp)
 * Madatsubomi (Bellsprout)
 * Utsudon (Weepinbell)
 * Utsubot (Victreebel)
 * Menokurage (Tentacool)
 * Dokukurage (Tentacruel)
 * Isitsubute (Geodude)
 * Golone (Graveler)
 * Golonya (Golem)
 * Ponyta
 * Gallop (Rapidash)
 * Yadon (Slowpoke)
 * Yadoran (Slowbro)
 * Coil (Magnemite)
 * Rarecoil (Magneton)
 * Kamonegi (Farfetch'd)
 * Dodo (Doduo)
 * Dodorio (Dodrio)
 * Pawou (Seel)
 * Jugon (Dewgong)
 * Betbeter (Grimer)
 * Betbeton (Muk)
 * Shellder
 * Parshen (Cloyster)
 * Ghos (Gastly)
 * Ghost (Haunter)
 * Gangar (Gengar)
 * Iwark (Onix)
 * Sleep (Drowzee)
 * Sleeper (Hypno)
 * Crab (Krabby)
 * Kingler
 * Biriridama (Voltorb)
 * Marumine (Electrode)
 * Tamatama (Exeggcute)
 * Nassy (Exeggutor)
 * Karakara (Cubone)
 * Garagara (Marowak)
 * Sawamular (Hitmonlee)
 * Ebiwalar (Hitmonchan)
 * Beroringa (Lickitung)
 * Dogars (Koffing)
 * Matadogas (Weezing)
 * Sihorn (Rhyhorn)
 * Sidon (Rhydon)
 * Lucky (Chansey)
 * Monjara (Tangela)
 * Garura (Kangaskhan)
 * Tattu (Horsea)
 * Seadra
 * Tosakinto (Goldeen)
 * Azumao (Seaking)
 * Hitodeman (Staryu)
 * Starmie
 * Barrierd (Mr. Mime)
 * Strike (Scyther)
 * Rougela (Jynx)
 * Eleboo (Electabuzz)
 * Boober (Magmar)
 * Kailios (Pinsir)
 * Kentauros (Tauros)
 * Koiking (Magikarp)
 * Gyarados
 * Laplace (Lapras)
 * Metamon (Ditto)
 * Eievui (Eevee)
 * Showers (Vaporeon)
 * Thunders (Jolteon)
 * Booster (Flareon)
 * Porygon
 * Omnite (Omanyte)
 * Omstar (Omastar)
 * Kabuto
 * Kabutops
 * Ptera (Aerodactyl)
 * Kabigon (Snorlax)
 * Freezer (Articuno)
 * Thunder (Zapdos)
 * Fire (Moltres)
 * Miniryu (Dratini)
 * Kairyu (Dragonite)
 * Mewtwo
 * Mew
 * Chicorita (Chikorita)
 * Hinoarashi (Cyndaquil)
 * Waninoko (Totodile)
 * Hoho (Hoothoot)
 * Rediba (Ledyba)
 * Togepy (Togepi)
 * Kireihana (Bellossom)
 * Maril (Marill)
 * Hanecco (Hoppip)
 * Nuoh (Quagsire)
 * Gliger (Gligar)
 * Bull (Snubbull)
 * Hassam (Scizor)
 * Elekid