Fireboy & Watergirl
Crystal · LEVEL 14 · Verified walkthrough
The Diagonal Crystal Puzzle
Explore both diagonal crystal routes, then use Watergirl’s plate and Fireboy’s lever together to open the two passages around the neutral diamond. Collect all nine diamonds and reach the separate exits.
Level objective
Collect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the middle right and Watergirl to the blue exit in the lower center. Both heroes must be at their own doors together. The 8 unmarked diamonds are optional; collect every diamond for a perfect clear.
| Campaign | The Crystal Temple · 14 of 39 |
|---|---|
| Collectibles | 4 fire diamonds, 4 water diamonds, 1 neutral diamonds. 1 marked diamonds required; 8 optional. |
| Hazards | No elemental pools in this room. |
| Mechanisms | 1 plate, 1 lever, 2 moving platforms, 6 portals |
| Win condition | Collect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the middle right and Watergirl to the blue exit in the lower center. Both heroes must be at their own doors together. The 8 unmarked diamonds are optional; collect every diamond for a perfect clear. |
| Exits | Fireboy: middle right. Watergirl: lower center. |
Step-by-step walkthrough
Fireboy explores the left side
From the lower-right start, jump into the diagonal green crystal to reach the upper left. Follow the steps toward the orange crystal and use it to reach the lower-left middle passage. Collect the red diamond above the broad lower shelf. Return through the orange pair and climb the small upper-left steps for the high red diamond.
Fireboy reaches the right side
Use the orange pair to descend on the left, then reach the diagonal white crystal near the bottom-left corner. Its partner takes Fireboy to the upper right. Move clear of the receiving crystal before changing direction. Collect the high red diamond above the right-hand upper shelf, then descend around the right side for the red diamond above the long middle shelf. Wait to the right of the purple gate.
Watergirl holds the purple plate
Watergirl collects the blue diamond above the small lower-left wall step, then climbs the lower shelves to the purple pressure plate near the center-left. Keep her on it until the purple gate on Fireboy’s shelf has lowered fully. Fireboy can now walk left through that opening.
Fireboy takes control of the pale-blue gate
Fireboy jumps into the upper orange crystal from the right to emerge in the lower-right middle passage. Climb the short steps to the pale-blue lever shelf and walk into its handle. Leave Fireboy standing beside the lever. Use Interact once to turn it OFF, lowering the gate in the left passage. Watergirl can now leave the plate.
Watergirl descends to the neutral-diamond passage
Watergirl returns through the lower orange crystal to the upper-left middle passage. Climb the small steps above the obstructing wall, cross left above the high blue diamond, and descend onto the small wall ledge. With the pale-blue gate lowered, walk right off that ledge and drop onto the floor just right of the gate. Wait there.
Open and close the lower passage together
Fireboy uses Interact at the lever to turn it ON. Wait for the pale-blue gate to rise, then Watergirl walks left underneath it for the neutral diamond. Watergirl must return to the floor on its right before Fireboy turns the lever OFF again. The lowered gate closes the neutral-diamond passage but clears the upper route.
Finish Watergirl’s blue diamonds
From the floor right of the lowered gate, jump upward before steering left onto the small wall ledge, then climb right to the high blue diamond. Return to the orange crystals and emerge toward the upper-right middle shelf for its blue diamond. Use the orange pair again to reach the lower-right passage and collect the blue diamond above the short shelf. Drop around its right edge to the bottom corridor, stopping beside the blue door.
Reach both exits
Fireboy leaves the lever OFF, jumps left off its shelf and descends into the bottom-right corridor. Use the small stone steps by the right wall to climb to the red exit ledge. Watergirl walks left into the blue door below. Either hero may enter first once the nine diamonds are collected.
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
middle center
Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it.
Controls Moving platform 1.
Switch 2
middle right
Walk past the handle, or use it nearby: Enter for Fireboy, E for Watergirl, or the touch Use button. Each use toggles it; it stays set after you leave.
Controls Moving platform 2.
Moving platform 1
middle right
At least one of these inputs must be active: Switch 1.
When powered, it moves down; when power is released, it returns.
Moving platform 2
middle left
At least one of these inputs must be active: Switch 2.
When powered, it moves up; when power is released, it returns.
Portal 1
upper left
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 right
This portal needs no switch power.
Step inside to travel to Portal 1. Step out of the destination before trying to return.
Portal 3
upper right
This portal needs no switch power.
Step inside to travel to Portal 4. Step out of the destination before trying to return.
Portal 4
lower left
This portal needs no switch power.
Step inside to travel to Portal 3. Step out of the destination before trying to return.
Portal 5
upper center
This portal needs no switch power.
Step inside to travel to Portal 6. Step out of the destination before trying to return.
Portal 6
lower center
This portal needs no switch power.
Step inside to travel to Portal 5. 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 Diagonal Crystal Puzzle?
Explore both diagonal crystal routes, then use Watergirl’s plate and Fireboy’s lever together to open the two passages around the neutral diamond. Collect all nine diamonds and reach the separate exits. Collect all 1 ring-marked diamond, then bring Fireboy to the orange exit in the middle right and Watergirl to the blue exit in the lower center. Both heroes must be at their own doors together. The 8 unmarked diamonds are optional; collect every diamond for a perfect clear.
How many diamonds are required in The Diagonal Crystal Puzzle?
9 diamonds: 4 for Fireboy, 4 for Watergirl, and 1 for either hero. 1 ring-marked diamond is required to finish. 8 unmarked diamonds are optional collectibles for a perfect clear.
Which hazards are in The Diagonal Crystal Puzzle?
This room has no elemental pools.
What do the switches do in The Diagonal Crystal Puzzle?
Switch 1 (middle center): Controls Moving platform 1. Keep a hero or movable weight on this plate to keep its signal active. Stepping off releases it. Switch 2 (middle right): Controls Moving platform 2. Walk past the handle, or use it nearby: Enter for Fireboy, E for Watergirl, or the touch Use button. Each use toggles it; it stays set after you leave.