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Mochi Loop

Light up every line of a neon candy figure in one unbroken stroke — drag dot to dot, never lift your finger, and never retrace a line you already lit.

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

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.
Press and hold on a pulsing dot to begin, then drag along a rail toward a neighbouring dot.
As your finger nears the next dot, the rail between them lights up and the smiling pen-tip jumps forward. Keep dragging from dot to dot to light more lines.
Watch the edges-lit counter at the top to see how many rails are left to cover.
Drag back onto the dot you just left to undo that line; press Restart to wipe the figure and start over.
Light every line in one unbroken stroke — when the last rail glows, the figure sparkles and the level is solved with three stars.
Tap Next to advance, or open the menu to jump to any unlocked level or into endless mode.

Controls

Input	Action
`Press a pulsing dot`	Start your stroke at a valid starting point
`Drag dot to dot`	Light the rail between them as you reach the next dot
`Drag back one dot`	Undo the last line you lit
`Z or Backspace`	Undo the last line
`R`	Restart the current figure from scratch
`Space or Enter`	Jump to the next level from the win card
`Settings menu`	Undo, Restart, open level select, or mute sound

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.
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.

Game details

Title: Mochi Loop
Genre: One-stroke trace puzzle
Players: 1 player
Controls: Press a pulsing dot and drag along the rails to light every line
Platforms: Web browser, Android, iOS (no download)
Developer: Anime Mochi
Released: 2026
Last updated: June 2026
Price: Free to play

Frequently asked questions

What exactly counts as solving a level?

You must light every single rail of the figure in one continuous stroke — each line exactly once, with no lifting your finger and no retracing. The counter at the top shows lit-over-total; when it reads the full count, the figure sparkles and the level is done.

Why can I only start on certain dots?

A one-stroke trace is only possible from particular dots — the ones that pulse. On a figure shaped like an open path there are exactly two of them and you must begin at one; on a figure that forms a closed loop every dot pulses, so you can start anywhere.

I keep getting stuck with one line left — what am I doing wrong?

Almost always you started from the wrong dot. If a single rail is always left over no matter how you route, restart and begin at the other pulsing dot, or rethink the order so you do not seal off a corner too early.

How many levels are there, and what changes between them?

There are 20 hand-tuned levels in five worlds of four. Berry and Citrus use only up-down-left-right rails on small grids; Mint, Ocean, and Galaxy add diagonal rails and grow the grid and line count, ending around a 7x6 figure of roughly 36 lines.

What happens after I finish all 20 levels?

Endless mode unlocks. It generates a brand-new figure every level with every mechanic — including diagonals — switched on from the start, and the difficulty begins near the Galaxy finale and keeps ramping up rather than resetting to easy.

Can I undo a wrong move without starting over?

Yes. Drag your finger back onto the dot you just left to take back that line, or use Undo in the settings menu. Restart, also in that menu, clears the whole figure if you want a clean slate.

Is my progress saved between visits?

Yes — the levels you have unlocked and your three-star clears are stored privately in your own browser, so they are waiting next time you play on the same device. There is no account or sign-in.