He-Man and the Masters of the Universe (1983)

S1E14 Dawn of Dragoon

Orko's enchanted pyramid accidentally rescues Dree Elle, a fellow Trollan, who is evading Dragoon, a menacing creature that is part man, part dragon, wreaking havoc in Orko's homeland of Trolla. Alarmed by the danger to his world, Orko quickly returns with Dree Elle in the pyramid. Realizing their friend needs assistance, He-Man and Battle Cat enlist The Sorceress to create a portal, allowing them to journey to Trolla. Once there, they find themselves in Orko's strange, topsy-turvy realm, where they must stop Dragoon’s terror before sunset, or risk being trapped away from Eternia forever.