TM203 is a Technical Machine (TM) that allows Pokémon to learn the move Hydro Pump. Hydro Pump is a powerful Water-type move with 110 base power and 80% accuracy. It's widely used by various Water-type Pokémon as a strong offensive option. In competitive battling, Hydro Pump's high damage output makes it a preferred choice for Pokémon like Starmie, Gyarados, and Greninja, despite its somewhat unreliable accuracy.
Hydro Pump functions by creating a massive surge of water to attack the target, usually resulting in significant damage due to its high base power. However, the trade-off is its relatively low PP (Power Points) of 5, meaning it can be used less frequently before needing to be restored.
Interesting facts about TM203 include its historical significance in the Pokémon series. TM203, known for teaching Hydro Pump, often appeared in different locations across various games. In earlier generations, moves like Hydro Pump could only be learned through leveling up or
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