Welcome to the cheats for NFL Blitz 2001 for the Dreamcast. Below are the cheats.
Off-screen plays
At the play selection screen, move to the top left corner of the screen and press Up(2). A play may now be selected on the VMU and will be kept secret from the other player(s). -From: CatfishBond@webtv.net
Cheat Codes
At the versus screen, press Turbo(L or R), Jump (X or Y), and Pass (A or B) to change the icons below the helmets. The numbers in the following list indicate the number of times each button is pressed. After the icons have been changed, press the D-pad or Analog-stick in the indicated direction to enable the code. If you entered the code correctly, you will see the name of the code and hear a sound. For example, to enter 1-2-3 Left, press Turbo, Jump(2), Pass(3), Left. Note: More then one code may be activated per game.