Forgoing parkour in favor of teleportation, an inspired modder by the nom de éditeur of EvilWeevil has created a 1:1 replica of the Mirror's Edge demo level from E3 (or, if you'd rather, the initial gameplay footage of DICE's first-person platformer) using Valve's smash action-puzzler, Portal.
As you can see in the video, there's no fancy climbing, leaping, balancing, or zipline action – this mod is all about using the portal gun to reach the (all-too-sudden) end of the level. Now to get a hold of the actual mod ... our time with Mirror's Edge at E3 was criminally brief, and we're always looking for an excuse to revisit Portal.