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A prism refracts light into a spectrum of orange and tan shades, accompanied by a remote control, a TV antenna, and swirling shapes.

Can you master the spectrum & dominate the invisible light ZapRush leaderboards?

Endless Mode

Zap Pool

100

Beyond the rainbow lies a spectrum you can't see but must master. From ultraviolet burns to infrared heat, the questions hit fast and never stop. Step into the invisible light ZapRush and prove your range. One mistake and the streak ends. How long can you stay in the dark?

Endless trivia - one wrong answer and it's over

Sign in or create an account, 5 free runs daily

ZapStacks in Invisible Light

Stylized deep-sea creatures including a jellyfish, an anglerfish, and coral in a geometric design.
Bioluminescence
20 Zaps · Hard
A black network switch with multiple orange and cream cables fanning out from it and an ethernet cable plugged into its side.
Fiber Optics
20 Zaps · Medium
A prism refracting light rays, a thermal camera, and two remote devices emitting signals.
Infrared Light
20 Zaps · Medium
A geometric composition of a sun, a magnifying glass over a zigzag line, and various abstract shapes in shades of orange, tan, and black.
Ultraviolet Light
20 Zaps · Medium
A stylized graphic featuring a vacuum tube, a rib cage, an X-ray photo, and an atomic model.
X-Rays
20 Zaps · Hard

More ZapRush in Light & Optics

Interlocking geometric shapes including faceted cylinders and rings in black, tan, and orange-brown.
A cluster of astronomical instruments including two telescopes, a scroll with a diagram, and a camera-like device.
A flashlight shines a thick orange zigzag beam through a magnifying glass and a prism, splitting into multiple orange and tan lines.
Stylized graphic featuring a sun, a prism with light rays, a magnifying glass, and a scroll with a technical drawing.