Lobby characters are the characters you see when you boot up the game. They are present in every game beside Hot Shots Golf 2 and Hot Shots Tennis(PS2). You can change the lobby character in some games, usually you need to unlock new characters.
Hot shots golf ps1 lobby character
Hot shots golf open tee lobby character neutral expression
Hit shots tennis get a grip lobby character, aka zeta
Tiffany as lobby character in hot shots golf 3
Amy as lobby character
Alex as lobby character