Tokens can be purchased from the in-game store (which can be quickly accessed by tapping the ‘token’ counter in the status bar area).

Bonus tokens are also awarded every day the game is played.

You may also be awarded tokens for completing puzzles and other objectives in the game.

You may also be able to earn additional tokens by viewing video ads or taking advantage of Tapjoy offers in the Tokens section of the Store (these options may not always be available).