High Heat 2003 boasts a lot of different modes and superficial options. With 7 different actual game modes, every player currently in MLB, and accurately modeled stadiums, this cannot be argued. But while the options may seem deep, the gameplay is actually very shallow.
None of the modes are very unique when compared to each other, except for the Home Run Derby. The Season, Exhibition, Career, and Playoffs are all basically the same - you just have to play a different amount of games in each. The last two modes are simply Batting and Pitching practice. There is also an option where you can edit players, but only in the stats area, and if you don't know what you're looking at, there's going to be a lot of trial and error.
The game tries to bog you down with a lot of bells and whistles, options on top of options, and complete stats for every player in the league. It also offers scouting reports at the start of every season, allowing you to restock your team with new players. But when you get right down to it, this game is just baseball and nothing else. I'm not slamming the sport itself, but this game just doesn't stand out from the rest in any way at all.