Has to be a "trick" question, doesn't it?! If we're talking of a VFL/AFL debut then our best ever effort is 5 goals (Heath Shephard, Terry Waters). Ian McOrist kicked 6 in his second game - he wore the #23 for most of his games, but was meant to be in #46 that day. I can't think of any player who came from another club, wore that number, and might have been a candidate (it wasn't A. Rocca).Which famous number 23 kicked 6 goals on debut?