An inkie is a sub-species of gloople. Like stickies, an inkie's main purpose is to break it's thin outer membrane by hitting a target. However, the outcome of this action is different. Unlike stickies, inkies are composed of a substance very similar to petrol. The area of the "inkie splat" is extremely slick, and will cause most invaders to slip and slide around long enough for a predator gloople to come and finish it off.