Pi

Fun, easy to learn yet challenging, and a little bit addictive - everything you want from a little game to momentarily take your mind off other matters. 

Challenge yourself ... the more correct you can get in a row the higher your score.

Four game modes:

1. Normal - you get 10 lives with each mistake losing a life until they are gone

2. Timed - do your best in two minutes

3. Endless - just keep playing until you decide you've scored enough

4. Crazy - how far can you make it without making a mistake?