User blog comment:NOS Sterling/Sonic Boom to be Playable at PAX Prime plus PAX Prime Updates/@comment-4892653-20140828232018/@comment-24111359-20140829201813

That mechanical noise in Shadow's scene does sound like something charging or powering up.

Also if SEGA are doing Skin Packs for RoL, i really want a vacation skin pack, we all want to see hawaiian shirt Shadow, SEGA...