I found this game really great!! Its a flash game that you need NOT to install. This is quite a very good game not only for kids but also for young at heart!
There are many levels on this game on which timer is running and you have to find the difference within a span of time and life.
My son and I both enjoyed this game! We got a good bonding over this game and I recommended it with two thumbs up!
Hope you'll enjoy!