Kena: Bridge of Spirits

There are a total of 24 Flower Shrines that you need to cleanse and interact with in the game. Along with some Money, cleaning these will also give you Karma which can be used in the upgrade shop, so you want to try and clear these out as you go (as best as possible, of course). There is freeplay after you complete the game, so if you don't clean all 24 by the time you finish the game, you can clean them up afterwards. For their locations (and all of the other collectibles in the game), please see the Collectible Guide found here.