The trailer for Yoshi's Story 2: Nega-Yoshi. STORY: The 8 yoshi's from Yoshi's Story go on a walk through the Enchanted Forest to gaze upon the wonders of the Happy Tree. Along the way, they find a secret cave. As they explore it, they release an entity which takes the form of a yoshi. This entity is then known as Nega Yoshi; an evil and destructive yoshi with notorious desires in mind...