In the Pokémon anime, there will often come up a Pokémon that knows a move it cannot learn legally in any of the games. It is unknown whether these are actual mistakes, a writing policy of not having to stick to the games too closely, or merely the Pokémon using an attribute that shares the name of a move in the games.

It should also be noted that occasionally Nintendo will make available Pokémon that can be transferred onto the games with a move that is not normally included in that Pokémon's moveset (a prime example being Pokémon Box Ruby & Sapphire, which gave away four separate Pokémon with moves that were not normally available to that specific Pokémon).

List of anime Pokémon with moves they can't learn in the games

# Icon Name Move Episode
127   Samurai's Pinsir Tackle 1004EP004
109   James's Koffing Counter 1006EP006
120   Misty's Staryu Counter 1007EP007
020   Ash's Raticate Hi Jump Kick 1015EP015
001   Ash's Bulbasaur Whirlwind 1032EP032
116   Misty's Horsea Sludge 1040EP040
037   Brock's Vulpix Agility 1072EP072
004   Zippo Tackle 1079EP079
055   Golduck Barrier 1091EP091
055   Golduck Psywave 1091EP091
006   Ash's Charizard Tackle 1108EP108
182   Bailey's Bellossom Twister 1122EP122
025   Ash's Pikachu Leer 1150EP150
202   Jessie's Wobbuffet Bide 1167EP167
001   Ash's Bulbasaur Dig 1225EP225
047   Parasect Sleep Powder 1225EP227
246   Ash's Larvitar Harden 1258EP258
208   Harrison's Steelix Wrap 1271EP271
299   Roxanne's Nosepass Hyper Beam 2016AG016
296   Brawly's Makuhita Slam 2020AG020
385   Jirachi Teleport *
371   Michelle's Bagon Skull Bash 2043AG043
397   Ash's Staravia Gust 3002DP002
269   Jessie's Dustox Stun Spore 3008DP008
414   Cheryl's Mothim Supersonic 3060DP032
436   Saturn's Bronzor Teleport 3060DP060
446   Kylie's Munchlax Giga Impact 3076DP076
376   Wild Template:Shiny2 Metagross Lock-On 3117DP117

Less blatant examples