I haven't gotten into any behind the back runners. Not a fan of temple run, agent dash or any others I've tried. I'm liking the look of this one though. I'll download it for sure.
Sidewalker available at midnight. Sidewalker -Comes out May 9th - Midnight tonight. Don't be Late! https://itunes.apple.com/us/app/sidewalker-late-to-work/id599423125?ls=1&mt=8