3000 YEARS OF TERROR...BREAKING LOOSE! (Realart re-release ad - all caps)
THE SECRET OF THE GEM OF DOOM! (original print ad - all caps)
THEY'RE MARKED...for DEATH! (original print ad - mostly caps)
Have they heard your heart beating?
Cetus-Lupedus! She's back!
Student Power Meets Nuclear power!
The Hilariously High-Scoring Comedy!
This Ain't No Hula!
The Kid is Back!
Some days business is good - and some days it's murder!
Everybody's favorite troublemakers are on the loose again!
From beyond imagination... from beyond the earth itself... XTRO waits.