Goldeen

Goldeen's tail fin billows out like a ballroom dress — hence its nickname, the Water Queen. In "Pokemon Emergency" Ash and Pikachu prepare to defend the Viridian City Pokemon Center from the thieving Team Rocket. Misty steps forward, chooses a random Poke Ball from the center and lets loose Goldeen. Since water Pokemon can't battle on land, an embarrassed Misty calls it right back, while Team Rocket laughs at the mistake of our valiant heroine.

First appearance: Episode 2 — "Pokemon Emergency"