Waterfall is a Water-Type move in which the user charges at its target, which has a 20% chance of making its target Flinch.
The secondary effect of Flinching did not exist until Generation IV. Waterfall was contained within HM07 from Generation II until Generation 4. From Generation V onward Waterfall would be contained within HM05.
 Pokémon that Learn this Move via Level-Up
 Pokémon that Learn this Move via HM05
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