The only flaw I know of in the Rapid Response Game is that you are so busy playing the game that you don't have time to focus on the timer. This App is fairly simple. You tell it the difficulty level you want and whether you want to play with Crisis Cards. From there it will sound an alarm whenever the 2 minutes is up. You can also quickly tap on the button whenever you complete a city. It will tell you when ever you have won or lost. I hope you enjoy.