Rainbow is the name of a power-up in the de Blob 2. It appearance is a multicoloured, Blob-like symbol that is inside a large bubble. When Blob collects it he will become multicoloured himself and will be invincible for a short period of time. When he paints buildings or defeats enemies he will not lose any paint points. Also, if Blob is given a mission to paint a set of buildings in a certain colour, e.g. red, Blob can just touch the buildings and they will become red without him having to go and find a paintbot of the required colour.