Monster Rancher (2000)

Genki, an avid gamer, finds himself unexpectedly transported into the vibrant universe of Monster Rancher. This fantastical realm is filled with a variety of creatures, and it's here that he encounters the spirited girl named Holly, along with a diverse group of monsters, including the lovable Mochi, the clever Suezo, the sturdy Golem, the fierce Tiger, and the agile Hare.

As Genki and his companions embark on their quest, they aim to claim the prestigious Legend Cup. Their ultimate goal is to uncover the secrets of a mysterious disc that holds the key to liberating Holly's father. Together, they navigate thrilling challenges and forge bonds that transcend the boundaries of their worlds, blending action and adventure with heartwarming moments along the way.