Green Slime

The Green Slime is a green, gelatinous creature that absorbs and envelops Pikmin and leaders.

=In fanon games=

In Pikmin: World of Mystery
The Green Slime is an enemy appearing in Pikmin: World of Mystery as a direct reference to a  enemy of the same name. It is a green gelatinous mass the size of an average Pikmin. It attacks by enveloping and trapping Pikmin and leaders within its mass, but is harmless as it can not directly kill them.