This app has so much potential and it's just a mess. Nothing works: the Google play account link up, freezes multiple times after doing the boss challenge thing, this last update installed and now it keeps reseting my event progress, the collection speed seems to artificially decrease and no progress can be made later on in the levels to force you to level up instead of doing all the quests... there's just no shortage of issues for what is really a very simple tapper game.