your phone must be rooted..
Step 1: Installing
you can also use "blackmarket" app to download "smanager"
Step 2: Check the Score
Step 3: Cheating
there will be a prompt the click browse as root..
if the prompt does not appear..
go to advance-configuration then check browse as root.
now go to the root of the phone then find /data/data/com.dotgears.plaffybird
open the shared.prefs
long press the xml upper part
open as text
use smanager edit then open directly
change the value of score into your desired value..