At the vs. screen, press Z, B, and A 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 you'll then hear a sound. More than one code may be entered at a time.
As an example, to enter the code 5-1-4 left for infinite turbo, press Z (x5), B , A (x4), Up (with D-pad or analog stick).
| Effect | Code |
| Infinite turbo | 5-1-4 up |
| Fast turbo running | 0-3-2 left |
| Power-up offense | 3-1-2 up |
| Power-up defense | 4-2-1 up |
| Power-up teammates | 2-3-3 up |
| Power-up blockers | 3-1-2 left |
| Super blitzing | 0-4-5 up |
| Super field goals | 1-2-3 left |
| No interceptions | 3-4-4 up |
| No random fumbles | 4-2-3 down |
| No first downs | 2-1-0 up |
| No punting | 1-5-1 up |
| Allow stepping out of bounds | 2-1-1 left |
| Fast passes | 2-5-0 left |
| Turn off stadium | 5-0-0 left |
| Lights out | 5-3-4 down |
| Late hits | 0-1-0 up |
| Show field goal percentage | 0-0-1 down |
| Show punt hang meter | 0-0-1 right |
| Use team plays | 1-0-0 up |
| Hide receiver name | 1-0-2 right |
| Invisible receiver highlight | 3-3-3 left |
| Invisible | 4-3-3 up |
| Big football | 0-5-0 right |
| Big head | 2-0-0 right |
| Huge head | 0-4-0 up |
| No head | 3-2-1 left |
| Headless team | 1-2-3 right |
| Team tiny players | 3-1-0 right |
| Team big heads | 2-0-3 right |
| No play selection * | 1-1-5 left |
| Show more field * | 0-2-1 right |
| No CPU assistance * | 0-1-2 down |
| Power-up speed * | 4-0-4 left |
| Hyper blitz * | 5-5-5 up |
| Smart CPU opponent ** | 3-1-4 down |
| Tournament mode *** | 1-1-1 down |
| Always quarterback **** | 2-2-2 left |
| Always receiver **** | 2-2-2 right |
| Old day stadium | 5-0-1 up |
| Day stadium | 5-0-1 down |
| City stadium | 5-0-1 left |
| Old night stadium | 5-0-2 up |
| Night stadium | 5-0-2 down |
| Future stadium | 5-0-2 left |
| Old snow stadium | 5-0-3 up |
| Snow stadium | 5-0-3 down |
| Roman stadium | 5-0-3 left |
| Grass field | 3-0-0 up |
| Asphalt field | 3-0-1 up |
| Dirt field | 3-0-2 up |
| Astroturf field | 3-0-3 up |
| Snow field | 3-0-4 up |
| Fog on | 0-3-0 down |
| Thick fog on | 0-4-1 down |
| Weather: clear | 2-1-2 left |
| Weather: snow | 5-2-5 down |
| Weather: rain | 5-5-5 right |
| Night game | 0-2-2 right |
* Two-player agreement required.
** Only in one-player game.
*** Only in two-player game.
**** Two human teammates required.
Note: Hidden players are only available in the Arcade mode.
After selecting Arcade mode, highlight Load and press the A button. Then highlight Player Record and press the A button. On the next two screens, enter the name and PIN number for the player you wish to use. If entered correctly, Lights Out Baby will be heard. The player-controlled character will have the head of the player whose code you entered.
| Player | Name/PIN |
| Mark Turmell | Turmel 0322 |
| Sal Divita | Sal 0201 |
| Jason Skiles | Jason 3141 |
| Jennifer Hedrick | Jenifr 3333 |
| Dan Thompson | Daniel 0604 |
| Jeff Johnson | Japple 6660 |
| John Root | Root 6000 |
| Luis Mangubat | Luis 3333 |
| Mike Lynch | Mike 3333 |
| Jim Gentile | Gentil 1111 |
| Dan Forden | Forden 1111 |
| Van | Van 1234 |
| Headless Guy | Carltn 1111 |
| Skull | Skull 1111 |
| Brain | Brain 1111 |
| Demon (Shinok) | Shinok 8337 |
| Raiden | Raiden 3691 |
| Thug | Thug 1111 |
| Billz | Billz 0526 |
| ZZ | ZZ 1221 |
| Jimk | Jimk 5621 |
| Marka | Marka 1112 |
| Ed | Ed 3246 |
| Todd | Todd 1122 |
| Mitch | Mitch 4393 |
| John | John 5158 |
| Josh | Josh 4288 |
| Ryan | Ryan 1029 |
| Beth | Beth 7761 |
| Brian | Brian 0818 |
| Grinch | Grinch 2220 |
| Paulo | Paulo 0517 |
| Lt | Lt 7777 |
| Nico | Nico 4440 |
| Gatson | Gatson 1111 |
| Guido | Guido 6765 |
| Rog | Rog 8148 |
| Monty | Monty 1836 |
| Shun | Shun 0530 |
| Gene | Gene 0310 |
| Paula | Paula 0425 |
| Dbn | Dbn 6969 |