If your first-person shooter is set in a dystopian futurecity and has zippy movement, you need to have fights bouncing and dashing across rooftops. That's just a rule. And thankfully this rule is heeded by Sprawl, an upcoming FPS with inspirations including Ghost In The Shell and Doom Eternal. The devs put out a 15-minute gameplay vid the other day and yes, I will run along these walls and bound across these rooftops and shoot these cyberfaces.