Shadow the Hedgehog

Shadow is the black hedgehog and Mario and Luigi's Rival.

Friends

 * Goomba
 * Bowser
 * Creeper
 * Yosemite Sam
 * Bowser Jr.

Rivals

 * Mario
 * Luigi
 * Peach
 * Koopa Troopa
 * Wario
 * Waluigi
 * DK
 * Daisy
 * Toad
 * Yoshi