Hidden teams
Hold [A] + [Y] + [C] just before the team selection screen appears. The Rad Army and Virgin Blasters teams will be selectable to the left of the Mighty Ducks.
Third jerseys
Select the Rangers, Mighty Ducks, Blackhawks, Bruins, or Lightning as the home team. Complete team selection and hold [A] + [Y] + [C] while the next part of the game loads. The selected home team will wear their third jerseys and the visiting team will be wearing their home jerseys.