You can match powerups with any regular marble. Every powerup has a special power as described below:
Wildcard You can match this powerup with any colored marble. Use it when you don't have a nearby marble for your match.
Freeze Time Use this powerup to stop the timer counting down. Really useful when time is running out and you need to complete the level.
Bomb Use this powerup to explode all the marbles around your match. Really useful to quickly unlock blocked marbles grouped in one area.
Multiplier You can match this powerup and also 3X and 4X to increase your points for a match. It will double, triple and quadruple the value of your match.
Boosters create powerups on the gameboard when pressed. You need to unlock and buy booster units with crystals before you can use them.
Luck (level8+) This booster will create a random powerup and place it on the gameboard.
Freeze (level 16+) This booster will stop the gameboard timer for a while. Move fast and earn points during this time.
Unlock (level 24+) This booster will remove bars from a random locked marble. Use it when it's hard to move around with multiple locks on the gameboard.
You can win free powerups if you move really quick. Three consecutive matches in less than 3 seconds count as a Combo and will generate a random powerup on the gameboard.
You can initiate realtime battles with your Game Center friends or some random person waiting to play.
The objective is to get a higher score than your opponent in a 2 minute battle. You can make your opponent's life harder by achieving Combos. This will automatically lock marbles on your opponent's game board and reward you with a random powerup. Boosters are quite useful in battles but you should use them wisely, because they cost a lot of crystals.
When a game is over you will have the chance to rematch or quit and connect to somebody else.