The Waddlepus is an aquatic enemy in Pikmin 3. It appears to be a purple starfish-like creature with several yellow protrusions on its back. It is harmless and incapable of killing your Pikmin. The Waddlepus sits idly and is generally passive. However, once a Pikmin or Leader is in its line of sight, it will inflate its back and blow bubbles everywhere which will encase the Pikmin and/or Leader(s), sending them floating away until they pop. You can pop the bubbles prematurely by throwing a Pikmin at them. When attacked, it will slowly waddle around, and inflate to shake off the Pikmin.