Theo Crystal

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A Theo Crystal

A Theo Crystal (often shortened to just Theo) is an object that appears in Mirror Temple A-Side and Mirror Temple B-Side. As the name suggests, it features Theo trapped inside a pentagon-shaped crystal. Madeline needs to carry it with her to progress: a gold temple gate, blocking her path, will open if and only if a Theo Crystal is near it.

Gameplay[edit | edit source]

A gold gate opens when Madeline goes near it while carrying a Theo Crystal
The presence of a Theo Crystal makes gold gates open by themselves

A Theo Crystal can be carried by holding the button used for climbing. While held, it slows Madeline down and makes her unable to dash or grab walls. Madeline can still perform walljumps, including neutral jumps, normally.

Releasing the button used for climbing will throw a Theo Crystal in the direction Madeline faces. To drop a crystal without throwing it (neutral drop), you need to press the down button before releasing the button used for climbing.

Dash Platforms and Springs give momentum to a Theo Crystal. If a Seeker crashes into the crystal, Madeline may drop it. A Theo Crystal can freely pass through spinners and spikes, however, it dies when crushed or dropped into a pit unless Invincibility is on. This kills Madeline too, but it can be circumvented by mods like Disposable Theo.

It is possible (and sometimes required) to activate yellow-colored dash switches by throwing a Theo Crystal into them. Touch switches can also be triggered by it. Additionally, in the final room of 5A, a Theo Crystal must be thrown into the eye; this will destroy both the crystal and the eye, freeing Theo.

Techniques[edit | edit source]

Trivia[edit | edit source]

  • Eyes in the background, platforms, and the eye in the end always look at a Theo Crystal.
  • In 5B, it is possible to collect a Red Crystal Heart by throwing a Theo Crystal at it instead of dashing into it.
  • This crystal is an expression of Theo's negative psychic energy, as mentioned in dialogues.