Face-off

The launch screen sets the stage for a battle of Transformerified Angry Birds and Pigs.

Tap to shoot

As your character runs across the screen, you tap on the spot you want to shoot at. In this instance, a smartly placed shot will cause the entire structure to come toppling down.

Celebrate

After completing each level, there's a mini celebration by the character(s) used to accomplish it.

Find your next challenge

A map of Pig Island is how you navigate, flying from tree cluster to tree cluster.

Wait for rebuilding

Just below the Intercept dialogue, you can see a countdown timer. You can wait for the level to be put back together --  in this case in about an hour -- or hand over 19 gems for immediate relief.

Gems are expensive

You'll randomly find gems in treasure chests on the island, and for completing specific tasks. But if you run out and want to speed up the game, you'll need to spend real money.

Characters

As your progress and capture more pigs, you can trade the pigs in for new characters.

To get the most out of each unlocked character, you'll then need to purchase upgrades using the coins you earn during gameplay.

Upgrades

Upgrading a character results in time spent waiting for the upgrade to be implemented, or an additional outlay of gems for immediate effect.