Paper Mario/Party Members/Kooper

Kooper is the second friend/partner Mario comes across in the game. He is a bit shy as a turtle but he is stubborn with his wishes. Mario met him because he had to chase down his shell which a Fuzzy had stolen.

In the field
Outside of battles, Mario can kick Kooper, who hides within his shell, to reach switches over gaps that Mario (and Parakarry and Lakilester) cannot cross.

In Battle
Kooper uses attacks that ignore spikes and fire, so he can hit most enemies, unless they are airborne. He also knows an all-party attack, dizzy-effect attack, and flame attack.