Blobster MR4

A shell-covered breed of Naga that has pincers like a lobster or scorpion, but a bent toward fire instead of water. It also have six arms instead of the normal two.

Blobster is briefly redesigned and renamed for Monster Rancher Advance to have the signature Dragon-like horn and wings (instead of looking like it is related to Arrowhead, like it does in most installations).

Etymology Edit

Its original name is a conglomeration of the words breakfast lobster.

Later it is named for the lava that it likes to live near. This name is based off of the term Hot-blooded, referring to someone who loses their temper easily.


Game Name Description Image
Monster Rancher 4 Blobster (???) "A vicious monster with scorpion poison strong enough to lay even the great Baku low. Its powerful scorpion claws make a can opener unnecessary."
Monster Rancher Advance Lava Blood (Dragon) N/A
Lava Blood MRA1
Monster Rancher DS Blobster (Dragon) "This evil monster managed to evolve scorpion's poison and pinchers for combat. Its poison is enough to drop a full-grown Baku, and its pinchers are sharp enough to open cans!"
My Monster Rancher Blobster (Dragon) "This monster is born a genius with excellent talents. However, it also tends to be very self-centered." Blobster MMR


  • To obtain a Blobster in Monster Rancher 4, use
  • To obtain a Lava Blood in Monster Rancher Advance, use the password will.
  • To obtain a Blobster in Monster Rancher DS, use
  • To obtain a Blobster in My Monster Rancher, use


For more pictures and screenshots of Blobster, click here.