You have to have to prinplups in the day care opposite gender that like each other
Chat with our AI personalities
by trading or cheating with an action replay-if you already have one you can also breed with a Pokemon of the same egg group to get another
pick it as your starter
Usually at target you can find a piplup doll in the Pokemon section. If you are asking 'Where can you find a Piplup in the Pokemon game?' you need the ds games Pokemon Diamond, Pokemon Pearl, or Platinum.
No, you have to trade with diamond, platinum or pearl.
Get it as a starter in diamond, pearl and platinum