Notes:

The video itself

That guys voice sounds so intimidating specially for a Sonic app but I kinda like it for comedic reasons. Also SPOILER there wasn't a single moment of actual gameplay which sucks…on the bright side though SEGA seems to be getting better at their Sonic commercials.It's FREE but will have premium in app purchases stuff you can get like in Sonic Dash.But before you start freaking out about it remember how easy it was to rack up stuff in Sonic Dash which pretty much made the in app purchases useless.I personally never bought a single thing in any Sonic app cause of how easy it was to get stuff.Will probably be the same thing here I think…and hope
Oh yeah here's the website
http://sonicrunners.sega-net.com/en/index.html