The Mesmer is a small, colorful fish with three design patterns; its four large skin panels are bluish white, and are capable of emitting a green bioluminescent glow at night, with dark violet stripes, and are surrounded by a thin translucent blue film. The patterns on these panels radiate and ripple when the creature is mesmerising its prey.
To open the developer console, press and hold the button that changes view, along with LB+LT+RB+RT+A.