Touch Arcade: Mango Down's Catch-22 [$0.99] is a mesmerizing, one-button arcade game that has you constantly facing your toughest opponent: yourself. The goal is to increase your score by gathering the orange orbs and avoiding the oncoming ball. Each round you survive increases the multiplier and the amount of orbs to collect. Once you gather all the visible orbs, you "switch" players, and the jumps you make become the path of your enemy-self. This alternating dance plays out until the two balls crash.