From Bulbapedia, the community-driven Pokémon encyclopedia.
Hydro Pump is a mostly accurate and very highly-damaging Water-type move introduced in Generation I.
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In other languages
French: hydrocanon, German: hydro pumpe, Italian: idropompa, Spanish: hidrobomba, Dutch: hydropomp, Portuguese: hidro bomba, Norwegian: vannkanon.
Hydro Pump does damage.
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