Wraiths

In Pikmin, there is a family known as Wraiths. This family contains four members, those being Water Wraith, Plasm Wraith, Crammed Wraith and GooliX.

Plasm Wraith is the final boss of Pikmin 3. If it creates a bubble, use Blue Pikmin. It it creates fire, use Red and so on.

Well, actually, I don't know much about it. Just know it's a boss in Pikmin 1 or 2and it rolls around on wheels.

Crammed Wraith is not a boss in Hey! Pikmin. That's all I know.

Goolix is a boss in Pikmin 1 or 2. It's very similar to Plasm Wraith. You'll see!