You can access players with strange statistics and ability levels that you otherwise could not have used with a normal player. Do this by creating a team on the Jammers customizable team with the same perfect player repeated for every player on the team. This player is 'perfect' in that you make him with 99 in every category, as tall and heavy as possible, and a deep shade of black. Then make a team just the opposite for the Slammers customizable team. He will be 50 at every statistic, shortest and lightest amounts available, and white. After making these two teams, play a two player game with them. At some point in the game the screen will freeze. Press Reset and go to 'Roster Setup' on the menu. Select 'Trade Players' on the next menu. Go to the Detroit Pistons team, and press Down to get to their backups. You will notice that one of the players is not one that you have seen before. Look at his statistics, which will be over 200 at some while 0 at others; 9' 6' tall; etc.
Press Up(2), Down(2), Left(2), Right(2), Select, B, A, Y, X at the options screen.