The game itself is great. The energy system, on the other hand, is outrageously terrible, like others have said. It takes more than a full day to completely stock up on energy, and only a few minutes to use it all. Short of paying exorbitant amounts of money or watching tons of ads for only a few minutes more of playtime (if you're lucky enough to get that), there are no options. Please fix the energy system to make this great game playable.