Much like abilities, and often working in tandem with them, Power-Ups allow you to get the edge or an extra advantage over the game, often helping you move closer to that tantalizing high score. The list of Power-Ups you can purchase in Temple Run 2 are found below:
The protects you from obstacles, and is good for a certain amount of time, or one hit - once it has protected you once, it will run out and you would need to use another Shield.
This rewards you with an instant bonus of 50 coins. You have to first buy the Barry Bones character to unlock it, however.
This activates your Boost, which increases speed dramatically and allows you to get out of tight situations. You can unlock it by purchasing the the Scarlett Fox character.
For an instant bonus of 500 points, this Power-Up comes in particularly handy. Like many of the other Power-Ups, it requires you to buy a character to unlock it - in this case it's Karma Lee.
This Power-Up turns on the 'Coin Magnet', drawing all Coins towards your character. You must be Level 5 to unlock it.
This is a very lucrative Power-Up, rewarding you instantly with two Gems. Understandably, you have to be Level 10 before it will unlock.