The previous fastest downloaded game was Angry Birds Space, selling 50 million copies in under six weeks -- though Angry Birds Space was a pay app, not a free download like Temple Run 2. Now This app Has been updated.
And Features As follows -Improved performance on older devices
Fixed bug which caused the same objective to be shown twice
Fixed various bugs and made other minor improvements
Fixed layout issues on 320x240 resolution devices
Check out on Playstore