de BLOB

The player character — de Blob — starts out as a ball of clear "water". de Blob is free to roll around and collect paint from Paintbots in the three colors of red, yellow and blue, which can be combined into green, orange, purple and brown. de Blob then merely has to touch a building, lamppost, billboard, or other object for the entire surface of said object to be smeared in his current color. (wikipedia.org).