Signature move

Signature moves are moves that can only be learned by certain Pokémon. They are usually only seen in Legendary Pokémon, however, other Pokémon may have moves specific to themselves or their evolutionary line.

List of Pokémon and their Signature moves

Note: All levels listed are the level the Pokémon will learn the move as of Generation IV.

#	Icon	Name	Move	Level
172	File:172MS.gif	Pichu	Volt Tackle	by breeding
025	File:025MS.gif	Pikachu	Volt Tackle	by breeding
026	File:026MS.gif	Raichu	Volt Tackle	by breeding
015	File:015MS.gif	Beedrill	Twineedle	Lv. 20
104	File:104MS.gif	Cubone	Bone Club Bonemerang Bone Rush	Lv. 7 Lv. 21 Lv. 37
105	File:105MS.gif	Marowak	Bone Club Bonemerang Bone Rush	Start Start Lv. 43
113	File:113MS.gif	Chansey	Softboiled	Lv. 12
242	File:242MS.gif	Blissey	Softboiled	Lv. 12
137	File:137MS.gif	Porygon	Conversion Conversion2	Start Start
233	File:233MS.gif	Porygon2	Conversion Conversion2	Start Start
474		Porygon-Z	Conversion Conversion2	Start Start
235	File:235MS.gif	Smeargle	Sketch	Start Lv. 11 Lv. 21 Lv. 31 Lv. 41 Lv. 51 Lv. 61 Lv. 71 Lv. 81 Lv. 91
416		Vespiquen	Attack Order Defend Order Heal Order	Lv. 37 Lv. 13 Lv. 25
249	File:249MS.gif	Lugia	Aeroblast	Lv. 85
250	File:250MS.gif	Ho-Oh	Sacred Fire	Lv. 85
380	File:380MS.gif	Latias	Mist Ball	Lv. 35
381	File:381MS.gif	Latios	Luster Purge	Lv. 35
385	File:385MS.gif	Jirachi	Doom Desire	Lv. 70
386	File:386MS.gif	Deoxys	Psycho Boost	Lv. 45
483		Dialga	Roar of Time	Lv. 40
484		Palkia	Spacial Rend	Lv. 40
485		Heatran	Magma Storm	Lv. 96
486		Regigigas	Crush Grip	Lv. 75
487		Giratina	Shadow Force	Lv. 40
488		Cresselia	Lunar Dance	Lv. 84
490		Manaphy	Heart Swap	Lv. 76
491		Darkrai	Dark Void	Lv. 66
492		Shaymin	Seed Flare	Lv. 100
493		Arceus	Judgment	Lv. 100

Trivia

It should be noted that Deoxys's signature move, Psycho Boost, can be learned by the Lugia from Pokémon XD: Gale of Darkness once it has been purified.