Bulborb

A Bulborb is a type of species in the Pikmin series that includes multiple sub-species, the most common of which is the Red Bulborb. They first appeared in the GameCube video game Pikmin, and were named by Captain Olimar, who presumably named them after his pet Bulbie.

They're found on the planet that the Pikmin live on, which is considered by fans of the series to be earth, but has just recently been called Distant Planet by the developers of Super Smash Bros. Brawl (note: this still doesn't deconfirm the theory that it's earth).

Sub-species
There are multiple subspecies of Bulborb in the game, some more common than other. The known Bulborbs include formerly mentioned Red Bulborb, Dwarf Red Bulborb, Hairy Bulborb, Orange Bulborb, Bulbmin, and Snow Bulborb.

Brawl
The species also appeared in Super Smash Bros. Brawl on the Distant Planet stage. Here, a Red Bulborb would appear on the right side of the stage, where it would attempt to gobble up you and your opponents. It could also be seen in the background.

When Captain Olimar uses his Final Smash, End of Day, Bulborbs and other species from the series will come onto the stage and attack his adversaries. It should also be noted that a Red Bulborb trophy also appears.