They were sort of reverse engineering a story out of it! And before they used all the Zyu2 footage up the Dairanger footage became available so they started mixing Zyu2 footage with Dairanger stuff and leaving a lot of Zyu2 footage on the cutting room floor!

This led to weird situations where you would see the Dairanger robots doing something, it would cut a Zyu2 monster, and then back to Dairanger footage so a lot of times the monster and the robot fighting it were never in the same scene! Very weird!