An Ace Combat dogfight is the world's coolest form of physics problem. It's a math prompt phrased in the form of simulated warplanes: Given the trajectories and velocities of two fighters, whose missiles will make their mark? By paring down the realities of air combat to arcade simplicity, AC makes melodrama out of intuitive arithmetic. There's no time to check your work when you've only got a brief moment of target lock, but there's no finer proof your calculations were right than the off-screen thud of a heatseeker hitting home.