The evil Dragon Mom (Princess Elzibub) rules an underground empire of monsters.
The only human looking monster is the trusted aide Witch Eye.
The only monster called by name is the first one, Mutant Drill.
The hairy monster giant sizes to squash Inframan, but the hero giant sized too.
These twin monsters attempt to capture Inframan.
In the end Dragon Mom (Princess Elzibub) reveals her true form.
The palace is guarded and the monsters supported by skeleton troops.