Overview
-Estimated achievement difficulty: 5/10
-Estimated time for 200: 4-8 hours (depending on speed run skill)
-Minimum playthroughs: 2 (1 story mode / 1 speed run mode)
-Offline: 20/20 (200)
-Online: 0/20 (0)
-Missable Achievements: 0 (level select)
-Unobtainable Achievements: 0
-Does difficulty affect achievements: No difficulty option
-Cheats disable achievements: No cheats
-Glitchy achievements: 3 (Neutralizer, Scream for me, and Thrill of the chase...see descriptions)
-Extra equipment needed: Windows Phone 7 or 8
Introduction
Mirror's Edge is a side-scrolling platformer that has you controlling Faith, a rooftop messenger in a futuristic, Utopian city where the news and communication is strictly controlled by the government. You must navigate from point to point using parkour-esque acrobatics. This game is direct port of the iPhone version that was released in 2010. Currently the game is listed at $2.99 in the marketplace and is the first Xbox Live game to be (timed) exclusive to Nokia Lumia phones.
Step 1: Story Mode
Play through all the levels starting from the beginning. Try as get as many of the miscellaneous achievements as you can, though most will likely come just from playing.
Step 2: Speed Run Mode
Now that you are familiar with the gameplay mechanics, begin 3-starring each level in speed run mode.
Step 3: Mop-up
Complete whatever miscellaneous achievements you may have remaining. There should be very few left.
Conclusion
The time trials are the hardest part of this completion. Other than that it is a breeze. If you don't mind a little frustration, Mirror's Edge may just be for you!
[x360a would like to thank Arsenic 17 for this Roadmap]