Marble Sort Level 800 — Walkthrough and Solution

Marble Sort Level 800 is a Lock and Key puzzle that hides its two critical Keys behind a wall of Mystery Boxes and single marbles. The winning move is to secure both Keys early, opening the bottom Boxes, before you release any of the long rainbow-colored bars. Once the locks are gone, the rest is orderly sorting.

The board has a Top Tray holding three multi-marble bars that release a flood of colors when tapped. The bottom Boxes are arranged with a Locked dark green Box on the far left, a Locked pink Box in the second column, and then unlocked Orange, Light Green, and Light Blue Boxes further right. The purple Key sits in the third row on the left, and the yellow Key sits in the same row on the right. Two solid colored blocks—orange on the left and green on the right—wait to dump their contents, and two rocket Boosters are perched at the top corners.

Marble Sort Level 800 Walkthrough

The bottom Boxes demand, from left to right: Dark Green, Pink, Orange, Light Green, and Light Blue. The first two are locked, so your initial goal is to unlock them.

The trap here is the multi-marble bars: they look like a quick way to get marbles, but releasing them before the locks are gone chokes the Conveyor Belt instantly, because you have no destination for many of the colors.

How to Beat Marble Sort Level 800 — Step-by-Step

Phase one: Unlock the pink Box

1. Tap the single marbles in the Top Tray that match the unlocked bottom Boxes—Light Green, Orange, and any Dark Green—to create space.
2. Clear the Mystery Boxes and single marbles above the purple Key on the left, being careful not to release any bar.
3. Tap the purple Key when it is exposed. It slides down the belt and opens the pink Box in the second column.

Phase two: Unlock the dark green Box

1. Shift your attention to the right side of the board and clear the path to the yellow Key, which sits next to the middle multi-marble bar.
2. Tap the yellow Key to release it. It travels to the far-left column and unlocks the dark green Box.

Phase three: Manage the bars and finish

1. Release one multi-marble bar at a time, starting with the top or bottom one, and sort its marbles into the now-open Boxes.
2. Wait until the Conveyor Belt is nearly empty before releasing the next bar, and repeat for all three bars.
3. Tap the solid orange block on the left to fill the orange Box, and the solid green block on the right to fill the dark green Box, ensuring you have enough space.
4. Clear any remaining single marbles or Mystery Boxes from the Top Tray.
5. Use the rocket Boosters only if a stubborn cluster blocks a needed color, saving them for emergencies.

Tips & tricks

• Focus solely on getting the Keys; ignore the bars until both locks are gone.
• When sorting a bar's sequence, keep the belt clear by matching colors to open Boxes as they appear.
• Use the solid blocks to finish quickly, but only when the corresponding Box has enough empty slots.

Common mistakes

• Tapping a multi-marble bar too early, which floods the belt with colors that have no open Box.
• Releasing a second bar before the first is fully sorted, causing a jam.

Marble Sort Level 800 FAQ

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