Marble Sort Level 390 — Walkthrough and Solution

Marble Sort Level 390 presents a top tray shaped like a funnel that narrows in the middle, with bottom boxes that require a specific order: Bright Red, White, Green, then Bright Red. The immediate marbles you can touch are Pink on the left and Dark Red on the right, which do not match any front box. The secret is to deliberately send those two decoys to the belt, opening the way to the White and Bright Red above them.

The board has two grey Surprise Bags on the lower edges, and two more at the top center, plus two Lock and Key mechanisms high up—left key holds Blue, right key holds Orange. The top corners hide two Tunnels, each containing two hidden clusters. Your early moves must ignore the bags and focus on feeding the correct colors into the front boxes.

Marble Sort Level 390 Walkthrough

The front row of bottom boxes asks for Bright Red, White, Green, Bright Red from left to right. But the funnel's bottom only reveals Pink (left) and Dark Red (right). Those are decoys; they occupy belt space but are necessary to unlock the path.

The trap is that if you tap the grey Surprise Bags hoping for White or Green, you'll get random colors that jam the belt. The board forces you to go straight up the middle: above Pink sits White, above Dark Red sits Bright Red.

How to Beat Marble Sort Level 390 — Step-by-Step

Phase one: Clear the central blockage

1. Tap the bottom-center Pink cluster and slide it to the Conveyor Belt.
2. Tap the bottom-center Dark Red cluster and drop it to the Conveyor Belt.
3. Now the White is exposed; tap it and guide it into the front White box.
4. Tap the Bright Red that was hidden above Dark Red, and send it to a front Bright Red box.
5. Look left: tap the Green marble below the yellow key and feed it to the front Green box.
6. Find another Bright Red (in the center column) and clear the last front Bright Red box.

Phase two: Unlock the midgame

1. The second row of boxes now slides forward, demanding Green, Pink, Bright Red, Orange. The Pink you parked earlier will automatically fly into the Pink box, freeing a belt slot.
2. On the right side, tap the Yellow and Brown clusters that block the Orange key, sending them to the belt or to matching boxes if the third row shows them.
3. Tap the Orange cluster to release the right Lock and Key.
4. On the left, the Blue cluster is now exposed; pull it down when a Blue box appears in the queue.
5. With both locks broken, the upper middle is fully open.

Phase three: Handle the bags and tunnels

1. Now tap the two grey Surprise Bags on the lower left and right edges, one at a time, matching each dropped color to a box before touching the next.
2. Then clear the two Surprise Bags at the top center, again one by one.
3. Finally, attack the two Tunnels in the top corners. Each drops two clusters, so ensure your belt is at least half empty before pulling from a tunnel.
4. Feed the tunnel marbles into the final rows of Red, Pink, and White boxes to finish.

Tips & tricks

• Always keep one belt slot free for emergency moves; never fill all slots.
• Use the auto-fill feature: when a box becomes available, the belt marble matching that color flies in automatically—plan your parking accordingly.
• Patience is key: never tap a Surprise Bag until the center is clear and you have space.

Common mistakes

• Tapping Surprise Bags too early, which floods the belt with random colors.
• Ignoring the decoy Pink and Dark Red, leaving the center blocked.
• Pulling from Tunnels when the belt is full, causing overflow.

Marble Sort Level 390 FAQ

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