It would make alot of mobile players very happy if they could do gestures using the radial wheels on controller, you could even add the drone to be compatible to fly in mobile connected via xbox one controller, I have a clip to send I took from the geforce now site on my phone, and on mobile right bumper is useless and is perfect to do facial gestures, pluss the you could use ui hand icons to let the user know what facial gestures they are doing.

also an 8mb limit maybe too small cause a 30second 720p vid at 30fps is 11mb