I don't think it's possible to stuff more clichés into a single anime even if you tried. That doesn't mean the OAV sequel to the Aura Battler Dunbine series is terrible, just that it's extremely anime, including giant mech fight, fantasy creatures and creepy villains trying to destroy the world.
This OAV is set 700 years after the original series, sporting the lineage of the former cast. Shion Zaba and Reml Jilfried team up again to stop a giant nuclear missile from wiping out their entire realm. For that they need the help of their trusty mech, which they'll have to awake from its slumber first.
The designs of the mechs and creatures are pretty awesome, it's clear quite a bit of time when into getting them just right. The animation on the other hand is extremely basic and the 80s art style isn't too flattering either. The pacing is solid though and the adventure is pretty epic. Cheesy fun.