For Leaderboards and Achievements, recent versions of the game will let you see either the Global lists or the Local lists, but not both simultaneously. Please follow the instructions below:
Accessing Global Leaderboards / Achievements
These are stored on a server, and thus can "follow you" from device to device so long as you sign in with the same ID you were previously using. But, since they're on a server, you need an internet connection.
- Google Play (uses Google+ for these services)
- iOS (uses Game Center for these services)
- Amazon (uses GameCircle for these services)
Accessing Local High Scores / Achievements
These are stored locally on the device, so you don't need an internet connection. However, they are local to the device--if you get a new device, you'll have to start over collecting these.