Temple jewel

Temple Jewels are objects that appear in the Glyphic Canyon and Sky Troop levels of Shadow the Hedgehog.

History
The Temple Jewels were, according to Black Doom, brought to earth by himself some 2000 years ago alongside the temples themselves. These jewels serve as the power source for the Black Arms' temples, helping keep them afloat.

Description
In the Glyphic Canyon level, the Dark Mission requires Shadow to activate the Temple Jewels in order to get the Black Arms' temples into the air. Later on, in the Sky Troop level, regardless of whether or not Shadow activated them prior, the Temple Jewels are already active, with the Hero Mission requiring the player to destroy them in order to cause the temples to collapse.