What does the kings rock do on Pokemon indigo?

Answer 1

King's Rock raises the chance of damage-dealing moves flinching their opponent. In addition, if a Slowpoke or Poliwhirl is traded while holding a King's Rock, it evolves into Slowking or Politoed.

Answer 2

If you give it to a Slowpoke then trade it, it will evolve into a Slowking If you give it to a Poliwhirl then trade it, it will evolve into a Politoed

Answer 3

When trading:

it evolves poliwhirl into politoed!!!

also evolves slowpoke into slowking

as a hold item:

raises the probability that the foe will flinch.

Answer 4

You give the King's Rock to your Machoke and go to the hole in the Whiscash Pond to evolve your Machoke into Machamp.

Answer 5

either give it to slowpoke or poliwirl and they'll evole or give to a Pokemon during battle

Answer 6

If held by poliwhirl and slowpoke during a trade they will evolve to politoed and slowking.

Answer 7

Yousm it on slowpoke and switch with other Pokemon

Answer 8

use it on a Poliwhirl and get a Politoad or use it on a Slowpoke and get a Slowking :)