You can play in 3 different modes:

Player mode vs Android - Where has 3 difficulty levels played against your Android device.

Player vs. Players Mode - Where are you one more friend compete on the same device.

Bluetooth Mode - This is the main application of this game mode where you challenge your friends, playing between two devices via Bluetooth.
  
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Play Mode Via Bluetooth

A player selects the Server type, responsible for creating the connection, this will play only with X.

The other player selects the Client option, which connect to the game that was open. Entering as Client, if the devices are not paired, the Server must be visible with Bluetooth so that the search is made. After that, just click on the desired device and then click Connect. (In case of delay to be made the connection, you need to press the Back button and Reconnect).

You will be ready to play !!!