Blubbugs (フグスベリ?, lit.: "Sliding Pufferfish") are round creatures in Hey! Pikmin that appear exclusively in Frozen Hazard. They have a layer of thick, tan fat around their body, which can be bounced off of.
It moves by spinning forward with its small brown legs. It has a small brown head with light blue eyes and antennae, making it look rather bug-like. Around its head are various spots, and it is roughly two times the height and three times the width of Captain Olimar, being quite large. Although it can be used to jump to higher terrain, it can also cause Olimar or his Pikmin to be bumped into something dangerous like a pit. They are docile, but can sometimes be found twirling and sliding around, which can be a bother, or even outright dangerous. Pikmin can be thrown at one to push it away, either for safety, or to place it somewhere where it can be jumped on top of.
The Puffy Blubbug is a similar creature, but can only be found in Over Wintry Mountains, is constantly spinning, and cannot be jumped on top of, serving only as an obstacle for Olimar during his ride.
Hey! Pikmin logs
“Not only does its thick, rubbery layer of fat insulate it from the ice and snow, it wards off any attack. The only way to get at it is to attack its inner core. It has that in common with certain people I know. It's just impossible to get through to them past their thick, insulating layer of self-regard.”
The name Blubbug is a conjunction of the word "Blubber" (from "blub") and "bug". Blubber is a very thick fatty hide on real-world animals such as whales, which is what Olimar describes in its entry in the Creature Log. "Bug" is obviously referring to its bug-like head and antennae. Its Japanese name translates to "Sliding Pufferfish". The creature moves by sliding around, and it resembles a real-world pufferfish, so that could be what this name is referring to.
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Names in other languages