Retired — won’t be restocked
This puzzle is part of our archive and is no longer available to purchase. Its photos and details are preserved here for puzzle lovers and collectors.
Description
INSIDE3 Mortal Phantom (Cthulhu) – Expert Maze Puzzle
INSIDE3 Mortal Phantom (Cthulhu) is a closed, hidden-ball maze with an extra distraction: a second ball inside the cube. Produced by DOuG Solutions.
Guide the playing ball through the internal labyrinth to the opposite side. Cthulhu cannot be opened, so this is a challenge to follow through without taking the cube apart for a look inside.
Specifications:
- Producer: DOuG Solutions
- Difficulty Level: Expert
- Puzzle Type: Maze Puzzle
- Series: INSIDE3 PHANTOM
- Material: ABS plastic
- Dimensions: 6 × 6 × 6 cm (approximately 2.36 in × 2.36 in × 2.36 in)
- Manufacturer Difficulty: frankly infeasible
- Maze Layers: 7
- Manufacturer Age Guidance: 14+
Features:
- Phantom Ball: A second enclosed ball adds misleading feedback to the hidden-maze experience.
- Seven-Layer Maze: The route occupies seven internal trays rather than a single flat surface.
- Closed Construction: This model does not open for inspection or ball retrieval.
- Compact Format: The six-centimeter cube contains a demanding spatial navigation challenge.
Why You'll Enjoy It:
Cthulhu suits experienced INSIDE3 solvers who enjoy working with limited feedback. The sealed cube and extra ball make patient observation more useful than hurried movement.
Questions?
Need more information about this puzzle? Contact us and we'll be happy to help.
Retired — won’t be restocked
This puzzle is part of our archive and is no longer available to purchase. Its photos and details are preserved here for puzzle lovers and collectors.


