I do recall him mentioning Akiba's Beat too. He mentioned how all the npcs are pink and blue. I don't remember where or what video exactly, but I only remember because I bought that game. Akiba's Beat also has dialogue bubbles that pop up on the side of the screen as you pass people to see what they're talking about. It's probably also from another game, but meh idk. it's hard to keep up with all the games he is taking ideas from.