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Orbit a glowing core through six rotating lanes and thread the single gap in each curved wall as it spirals in to your stage's piano track.
Mochi Spiral is a free browser survival game built around one idea: a small triangle pointer is always circling a bright central core, and curved walls keep sweeping inward from the edge of the screen. The play area is split into six pie-slice lanes, and every wall fills all but one of them - that single empty slice is the gap you have to be standing in when the wall reaches you. Hold the left half of the screen to orbit one way, the right half to orbit the other (the ◄ ► arrow keys, or A and D, do the same), and that is the entire control scheme. No jumping, no shooting - just reading the next gap and rotating into it before the wall closes over your lane.
The walls do not arrive at random. The game strings them into four named patterns, and learning to spot each one is the whole skill. A spiral drifts its gap one lane the same direction every ring, so you can simply hold one side and ride it all the way through. A zigzag flips the gap from side to side ring by ring, so you tap left, right, left to keep up. Steps walk the gap one lane at a time in a single direction with a breath between each move, and a random pattern shifts the gap up to one lane either way each ring so you have to read and react. Because the gap never jumps more than one of the six lanes per wall, every pattern you ever see is provably clearable if you read it in time.
What ties it together is the locked balance under the hood: your spin speed and the rate the walls arrive are mathematically tied so that one lane of rotation takes exactly one wall interval. That is why holding a direction during a spiral lands you perfectly in each gap with no drift, and it is why the difficulty feels fair as it climbs. Over the first hundred seconds of a run the spin speed, the wall cadence, and the inward wall speed all ramp up together, while the whole board slowly rotates, occasionally reversing or spinning faster, so reading the gaps stays interesting as you push for a longer time.
There are four colour-themed stages - blue, green, amber, and red - each with its own piano soundtrack and a higher starting difficulty than the last, so the red stage drops you straight into a brisk run. You start with only the first stage open. Surviving a full sixty seconds in Normal mode on the newest stage you have reached unlocks the next, with a progress bar that fills as you close in. A no-fail Practice mode is there for learning: instead of ending your run, a hit just freezes everything and lets you slide into the gap to carry on, music still playing.
| Input | Action |
|---|---|
| Hold left half of screen / ◄ / A | Orbit the core counter-clockwise |
| Hold right half of screen / ► / D | Orbit the core clockwise |
| Drag a finger across the middle | Flip your spin direction mid-orbit |
| Tap anywhere / Space / Enter | Start a run, or retry from the game-over card |
| Stage tiles (1 to 4) | Pick an unlocked colour stage to play |
| Normal / Practice buttons | Choose one-life scoring or the no-fail learning mode |
| Gear (top-right) > Stages | Leave the current run and reopen the stage and mode picker |
The clever thing about Mochi Spiral is that the screen is quietly divided into six pie-slice lanes, and every wall fills five of them. Your triangle pointer is only ever checked at its tip, not its whole body, so the margins feel honest: you can let the nose drift right up to a wall edge and slide along it without dying. You die only when a wall closes over the exact slice you are standing in. That single rule turns the game from twitchy dodging into something more like lane-changing, where you are picking which of six doors to be at when each ring arrives.
Underneath sits one equation that makes everything click. The speed your pointer spins and the rate walls march in are deliberately tied so that turning by one lane takes exactly one wall interval. That is why a spiral pattern, where the gap drifts the same direction every ring, can be cleared by simply holding one side and never lifting off. The other three pattern types build from the same constraint: the gap never shifts more than one lane per wall, so a zigzag is just alternating taps and a random run is read-and-react. Nothing here is unsolvable, which is exactly why losing always feels like your fault.
Two touches give a run its texture and neither shows up in the menus. The first is the camera: the whole board keeps re-rolling its own spin every few seconds, usually flipping direction, with a small chance of suddenly whipping faster, so a gap you had pinned swings out from under you and you relocate it relative to your pointer. The second is the stacking of difficulty. Each stage adds a fixed floor on top of the shared ramp that climbs over a run's first hundred seconds, so the red stage does not start gentle at all; it drops you in near where blue ends.
The structure is built for repeat attempts rather than a single sitting. Practice mode is the genuinely smart part: a hit does not end the run, it freezes the board and dims the walls while your marker pulses, and you slide left or right into the gap to thaw it, the piano track never pausing. It teaches the patterns without punishing them, though only Normal runs count toward the sixty-second survival that unlocks the next stage. There is even a finger that appears, pointing at the gap, if you sit still too long or die twice in quick succession.
Your score is simply how long you survive, measured in seconds to two decimals. There are no points or combos to chase - the only number that matters is your time, and each of the four stages keeps its own best.
Walls come in spirals (the gap drifts one lane the same way each ring, so you hold one direction), zigzags (the gap flips side to side, so you tap back and forth), steps (the gap walks one lane at a time with a pause), and random runs (the gap shifts up to one lane either way and you react). The gap never moves more than one of the six lanes per wall, so every pattern can be cleared.
Play Normal mode on the newest stage you have opened and survive a full sixty seconds without being hit. That unlocks the next stage, and a progress bar fills up while you play so you can see how close you are. You always start with only the first, blue stage available.
Practice is a no-fail learning mode. When a wall would normally end your run, it instead freezes the whole board and dims the walls, and you slide your pointer left or right into the gap; the moment your lane is clear the walls march in again and the run continues. The music keeps playing throughout and you can never die - but Practice runs don't count toward unlocking stages.
You can't rotate into a wall that's already sitting at your radius - you just slide along its edge - so grazing a wall's side is always safe. A run only ends when a wall sweeps inward over the exact lane you are standing in.
Both. Each stage has its own colour and piano track, but it also starts at a higher base difficulty, so the red stage begins faster than the blue one. On top of that, every run ramps up over its first hundred seconds regardless of stage.
It's completely free with no download or account. Your unlocked stages and your best time on each stage are stored privately in your own browser, so they're waiting for you next time you play on the same device.
Anime Mochi is a small independent studio making free, original browser games by hand in HTML5, JavaScript, and Canvas.