Anomaly's first levels tank. There's zero sense of the greatness yet to come, the opening drudge a wandering, memorization-laden trek through decimated Baghdad. It's a tutorial, learning the possibilities created with a weaving movement system that becomes the heart of Anomaly's later stages. Sadly, it barely resembles the 95% to follow.
Warzone Earth deserves your attention, five stages in bringing a euphoric feeling of brilliant game design that not even finding Jesus could match. It's that gut feeling that only comes along when you're holding something special, your mind has turned off, and the investment in the design is total. It's that good.