Turn on your Dreamcast and go to the "Music" option. Insert your NBA Hoopz disc and play track four. You'll gain access to over twenty minutes of the announcer saying everything he does in game. I didn't let the system play the track for more than twenty four minutes; it looked like it wasn't even halfway done by then!
On the cover of NBA Hoopz: none other than LA Lakers center Shaquille O'Neal.