Eldon from Denkiphile: "I swung by the Atlus booth because I had heard they were giving away free t-shirts for dancing with Teddie, and by I had heard I mean it was literally written on the card that came with my E3 badge. While there, I figured I might as well try out Persona 4: Dancing All Night because I love rhythm games and the Purse-owner series is kind of cool I guess."
Atlus' John Hardin talks about Persona 5's absence at E3 2015 in addition to providing some details (including game length) for Persona 4 Dancing All Night.
