NHL Hitz 20-03 is played as 3-on-3 hockey with all the penalties taken away except for fighting and goalie interference.
Hitz 20-03 has a ton of ways to play. You have an Exhibition mode to get you warmed up before you take on the more in-depth modes. This also allows you to play a friend (or 5 for that matter). Then, you have a Season mode where you can select an NHL team and choose to play from 14 to 82 games. After the season (if you qualify) there are the Stanley Cup Playoffs. This is also customizable, from a one game playoff setup to a best-of-7.
Hitz 20-03 moves away from the classic Midway Challenge mode to a more in-depth Franchise mode. In this mode you create a team. You get to choose the team's location. Then, you choose from a list of nicknames and logos. You can then edit players individually, or have the computer randomly generate players. Once you have your team, you are sent through a series of 'levels' where you are given certain tasks you need to accomplish in each game. If you accomplish tasks and win games, you slowly gain experience and increase your players' stats. You start off playing made up 'Minor League' teams, then move up to play weaker NHL teams, then the hard teams. It's basically an NHL RPG!
If that isn't enough for you, NHL Hitz 20-03 also includes a Tournament mode. This is basically the setup from the World Cup in soccer. You start in a group with 4 teams. The two best teams in each group then move on to a playoff format with 3 rounds. The winner of the playoff wins the tournament.
NHL Hitz 20-03 has even more options for you, however. There is also Hockey School and Mini Games. Hockey School mode is basically a place to work on the little tricks of the game, from one-timers to body checking. The Mini Games are one of my favorite parts of the game and are great in a multi-player situation. The games are 'Three in a Row' (a variation of Tic-Tac-Toe), 'Own the Ice', 'King of the Rink', 'Keep Away', 'Shootout', and 'Shooting Gallery'.