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Drag smiling mochi dots around a circular board until every red, crossing string straightens out and the whole web sits flat.
Mochi Untangle is a planarity puzzle: each board hands you a cluster of round, smiling mochi dots joined by soft strings, all knotted into a tangle. Any string that crosses another one is drawn bright red with a glow underneath it, while strings that touch nothing run a calm, faded colour. The puzzle is solved the moment no two strings cross anywhere on the board, so the red strings are the goal you read straight off the screen - there is no separate counter to chase.
You solve a board purely by dragging. Press a mochi and slide it anywhere inside the round playfield; the strings stretch to follow, recolouring live as crossings appear and disappear. A soft chime rises in pitch each time you tie fewer knots, so you can hear progress even before you spot it. There is no timer, no move limit, and no fail state - a wrong drag never costs anything, which makes Untangle one of the calmer puzzles on Anime Mochi.
Every board is solvable by construction. Behind the scenes the dots are laid out in a circle, the strings are added so that none cross in that ring, and then the loose dots are scrambled into the playfield - so the tidy circular arrangement is always a guaranteed answer waiting to be rediscovered. The game even re-scrambles a board if the random start happens to land already-solved, so you are never handed a finished puzzle.
There are 20 hand-tuned levels split into five themed worlds - Berry, Citrus, Mint, Ocean, and Galaxy, four levels each. The dot count climbs from 5 up to 12, the strings grow denser, and starting in the Ocean world some mochi are pinned: they wear a white ring and a little peg, sit locked at their solved spot, and cannot be dragged, so you must arrange everything else around them. Clear all 20 and Endless mode keeps generating fresh tangles that pick up where Galaxy leaves off - boards of 12 up to 16 dots with every mechanic switched on from the very first endless puzzle, slowly ramping as the numbers climb.
| Input | Action |
|---|---|
| Drag a dot (touch or mouse) | Pick up a mochi and move it freely inside the round board |
| Release | Drop the mochi; if it cleared the last crossing, the board wins |
| Pinned dots | Mochi with a white ring and peg are locked and cannot be dragged |
| Hint button (bottom-right) | Tap the bulb to solve one mochi - it walks the most-tangled dot home to its spot; tap again to keep untangling |
| Space or Enter | Advance to the next tangle from the win card |
| Back button | Return to the Anime Mochi home screen |
| Settings button | Open the level picker and the sound toggle |
What makes Mochi Untangle click is that the board does its own bookkeeping. You never count anything; you just hunt the colour. Any string crossing another burns a hot pink-red with a soft halo painted underneath, while every clear one drops to a muted, faded line, so the whole web is a live heat map of your own mistakes. Drag one dot and a dozen strings recolour at once, which turns solving into a chase: keep shoving the red somewhere it has nowhere left to cross. The instant the last red line cools to calm, you have won, and the screen never needed a single digit to tell you so.
The dots reward a closer look than a planarity puzzle usually earns. Each mochi is a gradient-lit blob with a stitched smile, two little dot eyes, pink blush cheeks and a glassy highlight skewed off-centre, plus a darker crescent of shading along the bottom so it reads as squishy rather than as a flat graph node. Grab one and it puffs up about a fifth larger with a translucent halo ring underneath, a small touch that keeps your held piece legible in a crowded mesh. Pinned dots wear a white outline and a tiny pegged stud, a quiet visual promise that this one will not budge.
The help here is unusually well-mannered. A short untie chime sweeps upward every time a drag removes a crossing, so good moves get an audible pat before your eyes finish parsing the board. Stall out, though, and the game leans in gently: idle for five seconds, or make five drags that untie nothing, and a pointing hand settles over the single most-tangled dot you can actually move, naming what to grab and nothing more. The bottom-right bulb goes further, secretly testing each dot at its solved slot and walking home whichever drop kills the most crossings.
There is real structure under the cute surface. Every board is built crossing-free in a hidden ring, then the loose dots are flung out across the disc by a spread-the-pile sampler that refuses to hand you a clump or an already-solved start, so a tidy circle is always the answer waiting underneath. The twenty curated levels nudge from five dots to twelve across Berry, Citrus, Mint, Ocean and the deep-purple Galaxy, with locked anchor dots arriving in Ocean to force planning around fixed points. It rewards patient, low-stakes play far more than speed, right up until Endless pushes sixteen-dot webs.
A red string is one that crosses another string somewhere on the board, and it glows with a soft red halo so it pops. Those crossings ARE the puzzle: drag the mochi until no string is red anymore. Strings that cross nothing settle to a calm, faded colour, so the screen tells you exactly how far you have to go without any number to read.
A flat web with no overlaps - every string runs straight from one mochi to another and not a single one passes over another string. The moment the last crossing clears, the board flashes, sparkles burst from each dot, and a little five-note chime plays. Often the tidiest solved shape is the dots spread evenly into a ring, since the hidden answer the board was built from is a circle.
Those are pinned dots: they wear a white outline ring with a small white peg at the top and sit locked at their solved spot, so they can't be picked up or dragged. They first appear in the Ocean world (1 to 2 of them per board), stay in Galaxy, and show up in Endless too. Because they never move, they act as fixed anchors - read where the pegged dots sit first, then arrange every draggable mochi around them.
Spread first, tidy second. From a tight clump it's almost impossible to see what crosses what, so fling the dots out wide, then nudge them one at a time toward an evenly-spaced ring around the edge of the round board. Move a single mochi and watch which strings flip from red to calm - that instantly tells you whether the drag helped, and a rising chime confirms you tied fewer knots.
20 hand-tuned levels split across five themed worlds - Berry, Citrus, Mint, Ocean, and Galaxy, four levels each. The dot count climbs from 5 up to 12 and the strings grow denser, with pinned dots joining from Ocean on. Clear all 20 and Endless mode begins past level 20, generating fresh tangles of 12 up to 16 dots with every mechanic (dense strings and pins) switched on from its very first board, ramping harder as the level number rises rather than restarting easy.
Every board has a guaranteed crossing-free answer because of how it's built: the dots are first arranged in a circle, strings are added so none cross in that ring, and then the loose dots are scrambled - so the original circle is always a valid solution waiting to be rediscovered. The game even re-scrambles a board if the random start happens to land already solved. There's no timer, no move limit, and no fail state, so a wrong drag never costs you anything and you can take any board at your own pace.
Anime Mochi is a small independent studio making free, original browser games by hand in HTML5, JavaScript, and Canvas.