Challenge Coins are bright pink or purple, and can be found at various points throughout each level of Super Mario Run. They are usually — surprise surprise — challenging! They may be situated high above or far below Mario's typical running platforms, which means you'll have to practice some tricky movies to get to them. For example, you might have to jump on the head of a Goomba, which gets you up to a platform where you'd have to spin jump from in order to get even higher to grab a Challenge Coin.
After you've collected every pink Challenge Coin on a level, you will unlock new purple coins for that level, which are — of course — even harder to get. Both the coin and block placement for a level changes after you've collected all of the initial Challenge Coins: The coins are harder to reach, there are new blocks in new locations, and you'll need to employ different skills to collect everything.
Super Mario Run offers three sets of Challenge Coins for each level, so the replay value is great across the board.
EmoticonEmoticon