Love this game.I'd give it 5stars but I play stages over and over w/boosters in order to get collection items and nothing.Rubies are very sparse and needed to purchase the most helpful items. In fairness there are lots of chances to arrive to a free hour of energy and if willing to watch a handful of ads you reap nice rewards.I only wish the scenes weren't so dark my eyes are awful and bringing up the brightness on my phone does zip!