If you play on Facebook, in order to enable Flash player in Google Chrome, please, follow these steps:
1. To the left of the web address, click the 'Lock' icon. You will open a new menu
2. Here, click the drop-down menu next to 'Flash'
3. Click 'Allow' to allow Flash to run on the site
4. Close the menu and refresh the game page
If you play on undercontrolgame.com:
1. To the left of the web address, click the 'Information' icon. You will open a new menu
2. Here, select 'Site Settings'
3. Scroll down to 'Flash' and click 'Allow' in the drop-down menu
4. Close the menu and refresh the game page