I'm making a game about a group of people being kidnapped, and the only way anyone can communicate to each other is over the phone. Every day, the group has to vote for someone to die. Your goal is to survive and raise your relationships with characters to keep from being voted.
I don't know the actual name for this effect, but it's the way that the text shows up in things like Pokemon, Ace Attorney, Danganronpa, and other games like that. The box has no writing in it and the game take a few seconds to write out the message, like someone is typing the dialogue really fast. How would you go about making that?