Feautures

First player color switches each game allowing a fair advantage to winning.
A label stating which color's turn it is.
A label stating who won on past games.
Turning on a robot when it is green's turn, automatically starts the robot playing.
On purpose delay for robot to make it look like it is thinking.
Big banner to congratulate the winner.
New button appears after a win (or if you swipe up and back again) to allow for more games.

Options:
Game Mode : tap the top right button to change the game mode
Play against a person or robot (robot has semi-decent AI to give you a challenge)
The robot will always be green
View Stats : tap the top left button to view stats
View Past Games : swipe up and down to view all games played