Legendary Pokemon (Pokemon Mono and Sepia)

Like the other games, there are a few Legendary Pokémon to be found within the Retoro region, not to mention they are the most powerful ones around and are difficult to capture. Mythical Pokemon are also part of this list, and here they are below:

Univamp
It can be freed from Lorra Manor from the third floor. After the final battle with Team Warfare, it can be found in Perilous Cave. It is Level 50.

Unidoron
It can be freed from Lorra Manor at an underground laboratory. After the final battle with Team Warfare, it can be found at Toxic Swamp. It is Level 50.

Unigaru
It can be freed from Lorra Manor at a maze in the huge garden. After the final battle with Team Warfare, it can be found at Nightmare Forest. It is Level 50.

Kamijuu/Ojoniji
After defeating Atomar in the final battle and restoring the Retoro region (and possibly the entire world) back to normal, Kamijuu/Ojiniji thanks you for freeing Chaovatar of its pain. You then have an option of battling and capturing it. Kamijuu is available in Mono, while Ojoniji is available in Sepia. They are Level 55.

Chaovatar
After winning the Champion Bowl, Chaovatar appears on Apex Island and once again sees you as the true hero. You then have an option to battle and capture it here. It is Level 70.

Trivia

 * Univamp, Unidoron, and Unigaru are modeled after the three classic Universal monsters Dracula, the Frankenstein monster, and the Wolf Man respectively. Additionally, the three have the same badge they wear, meaning they have a secret origin of some kind that will later be revealed in the upcoming DLC.
 * Kamijuu and Ojiniji are made after the two Japanese kaiju Godzilla and Mothra respectively.
 * Chaovatar's design was inspired by the Japanese superhero Ultraman, with its two faces made after the Greek drama masks from the MGM logo.