The subtitle of the film is "Through the Portal of Time" however the film is not about traveling through a time portal of any kind at all. It is actually about traveling through a portal to a parallel universe where the 1991 Earth exists in.
During the closing credits the Beastmaster can be seen running in front of the sunset with the tiger by his side. This sunset is actually a painted backdrop, and after some time the tiger pauses for moment showing that they are only moving on the spot.