Download tool :- http://www.newgameshacks.com/2013/05/hack-running-with-friends-all-versions.html
This is an example of the buffs in Temple Run 2. Temple Run 2 basically increases intensity of the buff based on how much you have upgraded it. The problem with this is once the user has upgraded it all the way up they no longer have a need to spend any money or earn coins. The upgrade costs are go up exponentially so it would take you a long time to upgrade them. The downside of doing it that way is you limit the intensity of the upgrades to either the highly engaged users or the high payers. This becomes unfair and very apparent to other users who are playing. The way that Running with Friends decided to do it is much more sustainable because the users will continue to gain gems and synch them into the slot machine.
