If you wish to reset your Google Play Games data please follow the instructions below.
Warning: This will permanently delete your achievement and leaderboard data and you will need to earn them again in-game if you wish to unlock them again.
Step 1: On your Android Device open Google’s “Play Games” app.
Step 2: Hit the “…” button at the top right and click on “Settings“
Step 3: Scroll down and under the “Your Data” section click on the “Delete Play Games account & data” button.
Step 4: Scroll down to the “Delete individual game data” section, locate the Sling Kong app icon and press the “Delete” button next to it. Press the “Permanently Delete” button on the confirmation screen.