Fun game but really frustrating on energy. Event maps are common but getting rid of two items on the map drains my entire energy meter and then I'm done. I literally play this game for 2 minutes then have to move on to something else. And they only want to give you 5 energy for watching ads. A different game I play gives 30 for ad watching. Dunno how much longer I'm going to keep at it because I feel like I am getting nowhere.