Spineroos or hoodlocks are Hoodlums often seen blocking thin passage ways and have to be knocked into something dangerous behind them by hitting them with Rayman's fists. If you get too close to them they will spin with their big metal balls (hence the name).
They are short and fat in appearance and can be seen wearing rusty chain mail and a metal helmet. They also hold a big metal ball in each hand. The first one is found in The Bog of Murk like in the picture.