Genetics have never been so hilarious. A thrilling new place opens on Pine Tree Mountain, "Wild Land", that offers a legendary experience. By wearing a gene-altering bracelet, guests can transform themselves into a variety of animals. Vick discovers that Wild life is hosting a competition with a massive grand prize and decides to enter. He teams up with Bramble and a mysterious man named Leon, astonishingly winning the tournament. Soon afterwards, Leon is caught trying to secretly copy the park data by the owner, Tom, and Vick discovers that hybrid guests are going feral and attacking others - Who is the mysterious Leon? Is Tom the mastermind Vick has to fight?

Bramble has always dreamed of becoming a great hero in order to gain recognition from everyone, especially his older brother, Briar. A piece of the alien nucleus that fell from the sky broke the peace of Pine Tree Mountain, but unexpectedly, Bramble merged with the alien nucleus and became a bear with alien wisdom and energy. However, this also brought about the pursuit of "alien" Abu who wanted to reclaim the nucleus.

A 1989 OVA about a boy saving the world from the evil scientist.

Legend of Regios was originally the English speaking cut-scenes on TV, that the characters in the Chrome Shelled Regios series were watching. This special (which has been included with the DVD release of Chrome Shelled Regios) has reorganized the scenes, extended some, and has been re-dubbed completely in Japanese. It's a side story within the Chrome Shelled Regios series.