Angry Birds Universe Wiki/Gem

Gems are shameless money-grabs shiny crystals used as a currency for multiple purposes depending on which game they're used in, they are usually very hard to obtain, but you can always pay actual money to get a couple hundreds or thousands.

Angry Birds Transformers
Gems are a secondary currency in the game. They can be used for the following things:


 * Speed up and complete upgrades;
 * Recharges;
 * Open missions;
 * Purchase Accessories;
 * Destroy difficult levels (which can only be used a matter of three times; each use increases the number of gems needed for the next attack);
 * Unlock covered levels to play bonus coin double levels
 * Change your Transformer into a different Transformer from an event for 1 gem.

They can be obtained by the following ways:


 * Through completing achievements.;
 * Through completing missions;
 * Inside Treasure Chests;
 * By buing them with real money;