Crystal · LEVEL 10 · Verified walkthrough

The Three Crystal Shelves

Share the green lift in both directions, collect all thirteen diamonds across the original shelves, then climb back through the middle arches and white crystals to the upper-right exits.

Level objective

Collect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the upper right and Watergirl to the blue exit in the upper right. Both heroes must be at their own doors together. The 12 unmarked diamonds are optional; collect every diamond for a perfect clear.

The Three Crystal Shelves, crystal level 10: actual game view with Fireboy, Watergirl, diamonds, elemental pools, matching exits, and this level’s mechanisms.
The level at its starting positions. Orange is safe for Fireboy; blue is safe for Watergirl; purple goo is dangerous to both.
Level at a glance
CampaignThe Crystal Temple · 10 of 39
Collectibles6 fire diamonds, 6 water diamonds, 1 neutral diamonds. 1 marked diamonds required; 12 optional.
Hazards1 lava pool, 1 water pool, 2 purple goo pools. Only your own element is safe; purple goo is dangerous to both.
Mechanisms4 plates, 3 moving platforms, 2 portals
Win conditionCollect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the upper right and Watergirl to the blue exit in the upper right. Both heroes must be at their own doors together. The 12 unmarked diamonds are optional; collect every diamond for a perfect clear.
ExitsFireboy: upper right. Watergirl: upper right.

Step-by-step walkthrough

  1. Give Watergirl the first green-lift ride

    Watergirl collects the blue diamond above the lower-left shelves and jumps onto the lowered green lift. Fireboy collects the nearby red diamond and stands on the lower green plate. Keep him there while Watergirl rides up, climbs the left shelves for the next two blue diamonds, and reaches the upper green plate.

  2. Lower the lift, then raise Fireboy

    Fireboy leaves the lower plate and waits on the fixed shelf to its right. Watergirl steps right off the upper plate so the green lift lowers again. Fireboy jumps onto the lowered lift. Watergirl returns to the upper plate and holds it until he has ridden up and left the lift safely.

  3. Collect Fireboy’s upper and lower diamonds

    Fireboy climbs the left shelves for the two upper red diamonds, then reaches the required neutral diamond beside the top white crystal. If the crystal transfers him down, step clear and enter the lower one again to return. Descend through the middle shelves for the red diamond above the orange pool and the red diamond near the central lower ramp. Finish with the red diamond on the dry bank to the right of the bottom purple pool.

  4. Finish Watergirl’s diamond tour

    Watergirl can now leave the upper green plate. Descend through the left passages to the lower white crystal and use it to reach the upper-right area. Follow the stone shelves for the blue diamond above the blue pool, the blue diamond beside the middle-left ledge, and the last blue diamond above the lower-right shelf. Finish on the orange plate ledge. All thirteen diamonds should now be collected.

  5. Return to the low central arch

    Fireboy jumps left over the bottom purple pool onto its dry bank, climbs the central plinth, and uses the diagonal ramp on its left to jump onto the low arch. Watergirl walks down and left from the orange ledge to the long lower shelf, then jumps left onto that same low arch. Either hero can make this return first.

  6. Use the matching safe pool route

    Watergirl walks across her blue pool and climbs its right-hand slope. Fireboy instead jumps left from the arch’s upper step onto the small wedge by the central wall, then jumps right onto his higher orange-pool shelf. Cross that safe orange pool and drop from its right bank onto the sloping stone beyond the blue pool.

  7. Climb the right wall and cross the upper arch

    Both heroes climb the right-hand stone slope and jump onto the short ledge by the right wall. Jump left onto the long upper shelf. Continue left across the upper arch, jumping over the purple pool, and climb the short stone ledges beside the central wall. Jump left onto the upper-left roof.

  8. Approach the white crystals from the upper stones

    Return right over the upper stone arches. From the high slope beneath the exit shelf, jump onto that shelf’s pointed left lip. Passing through its white crystal transfers the hero to the bottom passage; step clear, re-enter the lower crystal, and emerge on the right side of the top shelf.

  9. Walk to the two upper exits

    Fireboy walks to the red door on the right and Watergirl stops at the blue door beside it. Either hero may complete this return first. Finish with all thirteen diamonds and both doors occupied.

This route was verified in the game simulation using player controls, required diamonds, and both matching exits. It describes this version’s independently reconstructed room, not an official walkthrough.

How this room’s mechanisms work

  • Switch 1

    lower left

    Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.

    Controls Moving platform 1.

  • Switch 2

    upper left

    Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.

    Controls Moving platform 1.

  • Switch 3

    middle right

    Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.

    Controls Moving platform 3.

  • Switch 4

    lower right

    Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.

    Controls Moving platform 2.

  • Moving platform 1

    middle left

    At least one of these inputs must be active: Switch 1 and Switch 2.

    When powered, it moves up; when power is released, it returns.

  • Moving platform 2

    lower center

    At least one of these inputs must be active: Switch 4.

    When powered, it moves up; when power is released, it returns.

  • Moving platform 3

    lower right

    At least one of these inputs must be active: Switch 3.

    When powered, it moves up; when power is released, it returns.

  • Portal 1

    upper right

    This portal needs no switch power.

    Step inside to travel to Portal 2. Step out of the destination before trying to return.

  • Portal 2

    lower left

    This portal needs no switch power.

    Step inside to travel to Portal 1. Step out of the destination before trying to return.

If you get stuck

Check the unfinished objective

Count the ring-marked diamonds still visible. All 1 are required before both matching doors can finish this room; each hero collects their own color.

A gate or platform moved back

A pressure plate releases when its rider or weight leaves. Keep your partner on it until you are safely across. Levers stay set after you leave; check their ON or OFF state before crossing.

You missed a moving platform

Return to safe ground and use the connected switch to bring it back. Board before your partner releases the plate or changes the lever. Avoid jumping into its underside; line up with the open shaft first.

You cannot recover safely

Pause and choose Restart level to reset both heroes, diamonds, weights, and switches. Previously completed levels stay saved. Follow the step order before moving a box or releasing a weight.

For touch controls, jumping, audio, or online connection problems, see player troubleshooting.

Level questions

How do you finish The Three Crystal Shelves?

Share the green lift in both directions, collect all thirteen diamonds across the original shelves, then climb back through the middle arches and white crystals to the upper-right exits. Collect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the upper right and Watergirl to the blue exit in the upper right. Both heroes must be at their own doors together. The 12 unmarked diamonds are optional; collect every diamond for a perfect clear.

How many diamonds are required in The Three Crystal Shelves?

13 diamonds: 6 for Fireboy, 6 for Watergirl, and 1 for either hero. 1 ring-marked diamond is required to finish. 12 unmarked diamonds are optional collectibles for a perfect clear.

Which hazards are in The Three Crystal Shelves?

1 orange lava pool (middle center), 1 blue water pool (middle center), and 2 purple goo pools (middle center and lower right). Fireboy can enter orange lava; Watergirl must avoid it. Watergirl can enter blue water; Fireboy must avoid it. Purple goo defeats either hero. If either hero falls into a dangerous pool, both players restart the level.

What do the switches do in The Three Crystal Shelves?

Switch 1 (lower left): Controls Moving platform 1. Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it. Switch 2 (upper left): Controls Moving platform 1. Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it. Switch 3 (middle right): Controls Moving platform 3. Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it. Switch 4 (lower right): Controls Moving platform 2. Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.