Sting

Needs to be hard wired/attached to device

Don't format, you'll be forever reformatting it!!! Plug into your PC and modify something or add a random folder, now in the bottom right there should be an option to unmount (make sure you unmount it this way) don't just unplug it, it causes the drive to corrupt. Then unplug the power on your shield, plug the drive in and then the power lead and start up. If it doesn't work the first time try restarting with it plugged in. I've noticed myself that if you just hot plug it (plug with power on) it won't read, also it won't read it if it's not been unmounted properly since Marshmallow update its really fussy. Also don't unmount from shield with power on.

Has the lagging been fixed now???

It'll be in (Android/media) on either the shield or your external drives

Have you modified your settings files for Android???

You need to use a nightly build, the play store version doesn't work :/

Have you used Hyperspin before???

I think I'll have to invest in a few

Do they pair up OK??? Didn't think you could bluetooth connect anymore, so I modified an icade so it's wired

I've got a load of the original controllers, with USB adapters and OTG cables

I know!!! How sick would that be, Hyperspin in your pocket!!!

Can't help but notice you have a Nexus 6p Reznnate, does that mean we'll be getting Hyperspin for Nexus 6p??? Also what are you running your cab with, a shield portable???

Are the retroarch tgbdual and gameboy/gameboy color(emux) cores broken??? Neither seem to work through Hyperspin, and can't get (emux) to work at all :/

Have you put a setup onto your shield??? The App is just a launcher, so it you have a system already, place it in the root of your shield, and then try launching it