Designed as a complimentary piece to the Starfish; the urchin is an overtly masculine, small and jerky creature.
The urchin responds in a variety of ways to the light. Circling a light beam around the creature will encourage it to spin. Too much light and it will bump into the edges of the screen, possibly knocking limbs off in the process. These will regenerate over time. Too little light and the creature will enter a bioluminscent phase, emitting a series of pulsing light patterns.