- This page is about the Boost in Bejeweled Blitz. For the Power in Bejeweled Stars, see Mystery Gem (Power).
Mystery Gem is a Boost in the PC version of Bejeweled Blitz.
When purchased, this Boost changes a random gem on the game board into a Flame Gem, a Star Gem, or a Hypercube at the beginning of a game. A question mark indicates the gem that becomes transformed.
Like all boosts, Mystery Gem's effect lasts for three consecutive games before expiring.
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