Marble Sort Level 120 Walkthrough & Solution

Level 120 Board Overview: The Mystery-Tile Moat

Level 120 is a Very Hard board and it shows in the first frame: the Top Tray is a brick-style grid half-buried under gray mystery tiles. Each ”?” tile hides the marble beneath it, and two numbered crates — blue tiles marked “4” — sit in the middle columns where they block whatever rides under them. You start the level not fully knowing your own tray.

The colors you can see are scattered rather than stacked: Yellow and White near the left, Blue and Light Blue up top, Red and Orange on the right, with Pink, Purple, Brown, and the two Greens hiding among the mystery tiles. Down on the conveyor, the opening belt is led by runs of Light Blue and Blue with Yellow, Dark Pink, and Orange mixed into the queue.

Below the belt sits a four-wide receiver grid that runs several rows deep. The active front row opens heavy on Red, backed by Green and Yellow, and mystery boxes are already parked in the rows behind it. Brown, Orange, Dark Pink, and Purple have no early home — that gap is the trap.

The Trap in Marble Sort Level 120

The board does not let you plan a full column-by-column release, because half the tray is face-down. The specific edges that punish you:

• Mystery tiles across the middle rows: the center of the tray is a wall of gray ”?” tiles. You cannot see what sits under them, so any tap into that region is a gamble until they resolve.
• Two numbered crates (marked “4”) in the middle columns: each crate sits over a marble and needs its count worked down before the marble below is usable. Rushing them jams the funnel.
• Red everywhere early: the front row and the belt both lead with Red, and there are more Red boxes stacked in the grid behind. If you feed a different color into that slot, the belt backs up.
• Brown, Orange, and Dark Pink with no Boxes: these three ride the opening belt or sit visible in the tray, but none of the first rows of boxes ask for them. They are pure queue-fillers until the midgame rows cycle forward.
• A short queue above the receiver: the waiting lane holds only a handful of marbles. Overload it and the conveyor stops delivering the colors you actually need.

Marble Sort Level 120 Step-by-Step Walkthrough

Play the belt, not the tray. The conveyor is the only thing you can trust at the start.

Opening: feed the Red-heavy front row

1. Take the Light Blue and Blue runs that lead the opening belt and feed them to any front-row Light Blue or Blue slot that is showing.
2. Follow with the Reds — the front row opens with Red boxes side by side, so a queue of Reds clears fast and cycles the row.
3. Keep the Yellow and Green marbles moving into their front-row boxes as they arrive; they are the only other colors with a live box in the opening grid.
4. Do not tap the Brown, Orange, or Dark Pink marbles sitting on the belt or in the tray — none of the first rows of boxes ask for them, and parking them on the belt only starves the active slots.
5. Leave the middle of the tray alone entirely. The mystery tiles and the two “4” crates are bait: reaching them means dumping unknown colors into the funnel.
6. When the first front row clears, the grid shifts and a fresh set of boxes takes its place. Re-check the new front row before every feed.

Midgame: the mystery row opens

Once the opening rows cycle, Orange, Purple, and Brown boxes finally reach the front, and the tray’s mystery tiles start resolving into playable marbles.

7. Watch for the Purple box sliding into the front row, then release the Purples that were waiting in the tray.
8. Clear the two numbered crates only after their column’s color has a live box — the crate’s tap count is a real cost, so do it once, not twice.
9. Feed Orange and Brown as soon as their boxes appear; both had been parked on the belt since the opening, and the queue thins out quickly once they can land.
10. Use the extra row shifts to drain the middle of the tray. Colors that were hidden under ”?” tiles become the easiest pickups of the level once their boxes are visible.
11. Keep the queue above the receiver short. If a color with no active box is next in line, leave it and work the tray side instead.
12. The Magnet power-up (three uses at the top of the screen) is the safety net for any misfeed during the midgame shuffle — save it for when a wrong color is about to drop.

Cleanup: finish the grid

The endgame is a thinning board: fewer marbles, emptier rows, and the last boxes pulling colors straight off the belt.

13. From here, only feed colors whose box is sitting in the active front row — the grid is short enough that every misfeed costs a full cycle.
14. The last rows are dominated by the Blues, Greens, and Light Blues; let the belt feed them in the order the front row asks.
15. When only a few boxes remain, tap the tray columns that match them directly — the funnel stays short and the final marbles drop through almost without a queue.
16. The level clears with the board nearly empty: the last crate is gone, the mystery tiles are all resolved, and the final row slides out.

Level 120 Tips Recap

• The front row is law: only feed a color whose box is currently active, especially while mystery tiles hide half the tray.
• Brown, Orange, and Dark Pink ride the opening belt with nowhere to go — skip them until their midgame boxes cycle forward.
• Do not rush the two “4” crates. Wait until the column underneath them has a live box, then clear each crate in one pass.
• Keep the receiver’s short waiting lane unclogged; a full queue stalls the whole solve, so feed in runs, not dribbles.