Good game but it is full of bugs. Card collections disappearing (lost buildings, vikings etc) and have had whole game crash and take me to the beginning! It also penalises you for completing the game. Offers no rewards for side games such as treasure chest where dont get any shovels etc. You can play levels again but get no rewards, using all your power ups and coins so no point. Also, wait a long time for new levels to be released, rendering the game pointless while waiting.