The Sage Art: Boil Release Rasengan is a vibrant, swirling sphere of chakra with a dynamic, boiling effect at its core, resembling superheated liquid. The outer layer is a translucent, glowing blue with steam-like wisps emanating from the surface, while the inner core pulses with a fiery orange and yellow hue, simulating intense heat. The Rasengan maintains a perfect spherical shape with a slightly uneven surface due to the chakra's turbulent energy, giving it a rough, textured appearance. Distinctive spiral patterns are visible within the sphere, rotating rapidly to signify the immense power contained within.