- The ass-blaster (Caederus mexicana combustus) is a fictional species in the "Tremors" series of films. It is the third and final stage of the life-cycle including the graboid and shrieker. The ass-blaster appears in Tremors 3 and an episode of the TV series. It is named in Tremors 3 by Jodi Chang (Susan Chuang), the niece of Walter Chang, who named the graboids in the original Tremors.
Read more about this topic: Graboid