Only one problem. Ads. And too much ads like after every game and every rewards. I like the game and concept but man that ads :(

Horrible ads, ads every 2 seconds I get killed because an ad pops up. Not even wasting my time.

It works pretty fine to me. The need for an internet connection is still an excruciating thing to have since it's just a single player game. The ads are nowhere to be seen, which is both good and bad. The reason for it's to be good is, well, I hate ads, and for the bad one is that, I can't watch ads to double up my rewards and temporarily unlock a level that's used to be unlocked before updating the game (good thing there's a "restore" option, so I didn't lose all of my previous progress, but still).