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Beat the 3rd gym leader and later you will see him outside the gym, talk to him, then he will give you a basement key, go down on route 110 until you see water, use surf and keep going right until you see a cave entrance, go inside and use the basement key. Turn off the generator and go back to Wattson and he will give you thunderbolt. I think you can also buy it at the game corner too.

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14y ago

What else can I help you with?