Power gems are where the real points are made.
You get 1 free power gem per game, but can pay coins to add 2 more.
If you are willing to spend a
few extra coins, you can even
upgrade them to take advantage
of their full power!
Here's what each one does:
Get more basic heart gems
during the round
Freeze the clock temporarily
Boost your star power
temporarily
Receive several 7s in a row
Multiply your points for the
match it creates
Occasionally you'll find a rare
gem with extrodinary powers!