Hold left or right. Thread the gaps. The tunnel moves to the music.
A hypnotic fall down a glowing tunnel where the obstacles move to the music. You are a star spark riding the tunnel wall. Every ring that rushes toward you has one gap in it — hold the left or right side of the screen to spin around to the opening and slip through. That is the whole control, one thumb, and there is nothing else to learn. The trick is that the gaps arrive on the beat. Once you stop watching and start listening, you can feel where the next one will be before you can see it — and the game turns from a reflex test into something closer to dancing. Shave the wall on purpose. Passing within a hair of the edge is a near miss: time stretches for a moment, the ring flashes, and you bank bonus points that climb the longer you keep the chain alive. Anyone can survive the tunnel; the score comes from how close you dare to cut it. How it progresses: five zones, each opening at a distance and each changing the tunnel in one genuinely new way. Pulse is a steady beat. Drift spins the tunnel against you, so holding still no longer keeps you still. Split sends gates in pairs half a beat apart, so you have to plan two moves ahead. Flare makes the light breathe, and you read the gap by its shape instead of its brightness. Warp surges and eases with the music. Each zone brings a new palette and a new section of the track, and reaching one for the first time unlocks it in Zone Practice so you can learn it without starting from the top. There is also a Daily Tunnel — one course a day, the same for every player, with unlimited attempts and a shareable result. Miss a day and nothing is lost; the streak just starts again. Runs last well under a minute and restarting takes one tap. Progress saves by itself.