Blubbug

The Blubbug is a round insectoid creature that moves by spinning forward on its small brown legs. Blubbugs are generally docile, roaming a set area while ignoring leaders and Pikmin, but some will run towards those they see in an attempt to bounce them away with their thick layer of fat. 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 to reach higher terrain.

=In fanon games=

In Pikmin: Dual Worlds
The Bulbous Blubbug is a species of bloather in Pikmin: Dual Worlds that bounces essentially any object that isn't part of the environment around by either running up to the target, performing a small hop, and sliding across the icy ground towards its target or simply sliding into them at high speed while spinning and standing on the ends of its feet. If it falls from a high place it will merely continue sliding. While in this game it can be killed, it's immune to damage everywhere but the head and can easily shake Pikmin off. In certain areas it may appear constantly spawning while sliding along a path. In such instances, it cannot be damaged, acting instead as an obstacle to avoid due to its high speed. When it appears in a standing situation, it may act as a platform to walk over or as a bouncy trampoline to help get to high places. It may be used to bounce other enemies off of ledges or into dangerous places, but this is risky due to the chance of the same happening to Pikmin or Leaders. It may also be possible to use a Bulbous Blubbug to send Pikmin and Leaders to specific places at high speeds but this would be very difficult. Luckily, any Pikmin knocked away in the same general area as others will always be knocked the same way. Pikmin that they land on top of will be stunned for a time.