A bit confused about iCloud
Good day! I am just a little confused about on how iCloud works for my Devices. For example on my iPhone, if I allow my iCloud to back up data from my game "Crossy Roads". Then after that, I open my iPad, which has a "Crossy Roads" game on it, and back up from iCloud. , does the progress I played in my Cross Roads on my iPad be lost and be repalced with the data I backed up from the cloud, which is the progress from my iPhone?
iPhone 6s Plus, iOS 9.2.1