the reason why the video says 'duo glitch' it's because it has two glitches in it. The first one is one of thoese 'not so often' kind of glitches with the key. And the second one is just the basic glitch where you just keep the chrage button down then quickly press select button twice you'll hear the music but not the chargeing sound but will hear it again when fall into the water, bump into a wall, stop chrageing then charge again.
