Mochi Loop

About Mochi Loop

Mochi Loop is the old pen-and-paper brain-teaser of drawing a shape without lifting your pencil, rebuilt as a glowing candy puzzle for the screen. Every level is a figure made of bright dots joined by neon rails, and your one job is to trace the whole thing in a single continuous stroke: cross every line exactly once, never lifting your finger and never going back over a line you already lit. A little smiling pen-tip dot leads the way, each rail flares to life with a travelling spark as you cross it, and when the very last line lights the figure bursts into sparkles. A counter at the top quietly tracks your progress as edges-lit over total, so you always know how many lines are left.

What makes the puzzle tick is which dots you are allowed to start from. Mathematicians call this a one-stroke or Eulerian trace, and the rule is simple in practice: the dots that pulse are your valid starting points. Many figures have exactly two pulsing dots and you must begin at one of them; closed-loop figures pulse everywhere, so you can start anywhere. Pick the wrong start and you will always strand a line you cannot reach without retracing - so when a route keeps stalling, the fix is usually to start somewhere else.

Every figure is built backwards from a real solution, so there are no impossible boards and no traps you cannot escape. If you paint yourself into a corner, just drag back onto the dot you came from to undo the last line, tap Undo from the settings menu, or hit Restart to clear the figure and try a fresh route. There is no timer and no way to truly lose - only the satisfying click of finally finding the one path that covers everything.

The 20 hand-tuned levels are grouped into five candy worlds of four levels each - Berry, Citrus, Mint, Ocean, and Galaxy - and the difficulty climbs steadily as you go. Berry and Citrus stick to up-down-left-right rails on small grids; from Mint onward, diagonal corner-to-corner rails join in and the figures grow into wide, dense constellations, finishing on a seven-by-six Galaxy board of around thirty-six lines. Clear all twenty and an endless mode takes over, generating fresh figures forever with every mechanic switched on and the difficulty starting near that Galaxy finale rather than dropping back to easy.

How to play Mochi Loop

1. Look for the candy dots that gently pulse - those are the valid places to begin your stroke. If a figure has two of them, you must start at one of the two.
2. Tap a pulsing dot to begin. Then either tap a neighbouring dot to light the rail to it, or drag along the rails - both work, whichever you prefer.
3. Each lit rail jumps the smiling pen-tip forward. Keep tapping (or dragging) dot to dot to light more lines.
4. Watch the edges-lit counter at the top to see how many rails are left to cover.
5. Tap (or drag back onto) the dot you just left to undo that line; press Restart to wipe the figure and start over.
6. Light every line in one unbroken stroke - when the last rail glows, the figure sparkles and the level is solved with three stars.
7. Tap Next to advance, or open the menu to jump to any unlocked level or into endless mode.

Controls

Tips & strategy

• Start your eyes on the pulsing dots. They mark the only legal starting points, and on most figures choosing the right one of the two is the whole puzzle.
• If you keep stranding a single line no matter what you do, you almost certainly began at the wrong dot - restart and try the other pulsing one.
• Trace a route with your eyes before you drag. Spotting which rails feed into a tight corner saves a lot of undoing later.
• Clear the awkward dead-end rails - the ones hanging off a single dot - early, while you still have free moves, instead of saving them for last.
• Undo is cheaper than restart. Drag back a dot or two to fix a wrong turn rather than wiping a figure you mostly solved.
• From Mint onward, watch for diagonal rails running corner to corner; they are easy to overlook when you are scanning only up, down, and sideways.
• There is no clock and no fail state, so experiment freely - every Mochi Loop figure is guaranteed to have a one-stroke solution.

Game features

• A true one-stroke (Eulerian) trace puzzle: cover every rail of a neon figure exactly once in a single unbroken drag.
• Pulsing dots show your valid starting points, so the core challenge is reading the figure and choosing where to begin.
• 20 hand-tuned levels across five candy worlds - Berry, Citrus, Mint, Ocean, and Galaxy - at four levels each, ramping from tiny 3x3 grids to a dense 7x6 finale.
• Diagonal corner-to-corner rails join in from the third world for richer, trickier shapes.
• Every board is built from a real solution, so puzzles are always solvable and you can never get permanently stuck.
• Forgiving controls: drag-back undo, an Undo button, and a full Restart whenever a route goes wrong.
• Endless mode after level 20 generates fresh figures forever with all mechanics on, starting near the Galaxy finale and climbing.
• A live edges-lit counter, glowing neon rails with a smiling pen-tip, candy worlds with their own colours, and a sparkly win burst.
• Looping background music plus synthesized sound that rises in pitch as your stroke grows, with a one-tap mute toggle.
• Progress saves automatically in your browser and it plays instantly on phone, tablet, or desktop - no download, no account.

One Breath, Every Rail Aglow

What carries Mochi Loop is the rhythm of a single committed line. Every rail you cross fires off with a travelling spark and a short triangle-wave note, each pitched a step above the one before with a quiet sub-octave humming underneath, so a clean run becomes a little rising figure you can almost hum. The lit stretch gets a two-pass neon treatment, a wide faint additive bloom beneath a near-white core, with a bright dashed sheen that slides only along the segments you have fully completed. Nothing here asks for fast hands. It rewards the quiet click of a plan landing, the moment a scatter of dots resolves into the one route that simply has to close.

The cleverest touch hides in a corner you cannot see coming. Idle for about five seconds, or fire off six presses that light nothing, and the platform's little three-dimensional mochi finger drifts in to point at exactly one dot, fingertip anchored on it, hanging below and pointing up only when that dot sits on the top row. Behind that nudge the game runs an honest depth-first search across the still-dark rails and surfaces the first move of a guaranteed full completion, never the whole answer. Before you have begun it just points at the lowest valid start so it never jitters, and it vanishes the instant you touch the board.

What sets Loop apart is how honestly every figure is built. Each board is grown backwards from a random one-stroke walk, then re-simulated as if you were tracing it, so a shape only ships once the game has confirmed its own solution holds. There is genuinely no dead board here, and that trust changes how you play. You stop fearing the figure and start prodding it, dragging back a dot to peel off a wrong turn, wiping the whole thing to test a fresh opening from the other pulsing start. The leading dot even wears a tiny smiling face, and your stroke stays lit when you lift off, so you can stop, stare, and pick the line back up from the head.

The five candy worlds each pour out their own gradient wash and drifting twinkle field, from Berry pink through Citrus amber and Mint green to Ocean blue and a deep Galaxy violet, and the climb is steady rather than spiteful. Berry and Citrus hold you to plain up-down-left-right rails on small lattices while you learn to read which dot wants to lead. From Mint on, diagonal corner-to-corner rails join in and the constellations spread wider, ending near a dense seven-by-six finale of around thirty-six lines. Endless then drops the brakes, opening close to that final hardness with every mechanic already live and ramping upward forever.