Master code:
Enter the "Specials" menu and enter ARACHNID or IMIARMAS as a code. A laugh will confirm correct code entry. All regular levels, FMV sequences, and gallery pictures will be unlocked. Repeat code entry to return to normal.

Unlimited webbing:
Enter the "Specials" menu and enter ORGANICWEBBING as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal. Alternately, accumulate 50,000 points during game play

All fighting controls:
Enter the "Specials" menu and enter KOALA as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Level select:
Enter the "Specials" menu and enter IMIARMAS as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Note: The code is director Sam Raimi's name backwards.
Information in this section was contributed by ssmith6666.

Level skip:
Enter the "Specials" menu and enter ROMITAS as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal. Pause game play and select the "Next Level" option to advance to the next level.

Bonus training levels:
Enter the "Specials" menu and enter HEADEXPLODY as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as Mary Jane:
Enter the "Specials" menu and enter GIRLNEXTDOOR as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as The Shocker:
Enter the "Specials" menu and enter HERMANSCHULTZ as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as a scientist:
Enter the "Specials" menu and enter SERUM as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as a police officer:
Enter the "Specials" menu and enter REALHERO as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as Captain Stacey (helicopter pilot):
Enter the "Specials" menu and enter CAPTAINSTACEY as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as Skulls Gang Thug:
Enter the "Specials" menu and enter KNUCKLES as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as Uncle Ben's Killer:
Enter the "Specials" menu and enter STICKYRICE as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Play as Shocker's Thug:
Enter the "Specials" menu and enter THUGSRUS as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Matrix-style attacks:
Enter the "Specials" menu and enter DODGETHIS as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Goblin-style costume:
Enter the "Specials" menu and enter FREAKOUT as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Small Spider-Man:
Enter the "Specials" menu and enter SPIDERBYTE as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal. Note: When this code is enabled, your shadow will remain normal-sized. Note: This code was removed in version 1.1 of the game.
Information in this section was contributed by Henry Hai Minh and Steven Lucas.

Big head and feet for Spider-Man:
Enter the "Specials" menu and enter GOESTOYOURHEAD as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal. Note: This code was removed in version 1.1 of the game.
Information in this section was contributed by Steven Lucas.

Enemies have big heads:
Enter the "Specials" menu and enter JOELSPEANUTS as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

First person view:
Enter the "Specials" menu and enter UNDERTHEMASK as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.

Unlimited Green Goblin glider power:
Enter the "Specials" menu and enter CHILLOUT as a code. A laugh will confirm correct code entry. Repeat code entry to return to normal.
Information in this section was contributed by MattSL25.

Pinhead Bowling mini-game:
Accumulate 10,000 points during game play to unlock the Pinhead bowling mini-game in the training menu.

Vulture FMV sequence:
Accumulate 20,000 points during game play to unlock a Vulture FMV sequence in the CG menu.

Shocker FMV sequence:
Accumulate 30,000 points during game play to unlock a Vulture FMV sequence in the CG menu.

Green Goblin FMV sequence:
Successfully complete the game under the hero or greater difficulty setting.

Unlimited webbing:
Accumulate 50,000 points during game play

Play as Alex Ross:
Successfully complete the game under the normal or higher difficulty setting to unlock the Alex Ross costume in the specials menu.

Play as the Green Goblin:
Successfully complete the game under the hero or super hero difficulty setting to unlock the Green Goblin costume option at the specials menu. Select that option to play as Harry Osborn in the Green Goblin costume with his weapons in an alternate storyline where he tries to correct the Osborn family's reputation.

To unlock this easily, start a new game under the hero or super hero difficulty setting. At the first level, pause game play, then quit to the main menu. Enable the ARACHNID code, then go to the "Level Warp" option. Choose the "Conclusion" level (that features Norman revealing himself to Spider-Man followed by the glider sequence), then exit. This marks the game as completed under the selected difficulty setting. The Green Goblin costume option will be unlocked at the "Secret Store" screen.

To unlock this easily, enable the ROMITAS code and choose Hero or Super Hero. Keep pressing Start then select "Next Level" until you get to the end. The Green Goblin's costume and all his moves will be unlocked in the "Secret Store" screen.

Alternate Green Goblin costume:
If you are using the Alex Ross Spider-Man, play any level with the Green Goblin in it and he will have an alternate costume that resembles his classic costume more. Note: This will only work when you are in the Alex Ross costume and the Green Goblin alternate costume will not be in the very last in-game intermission.

Play as Peter Parker:
Successfully complete the game under the easy or higher difficulty setting to unlock the Peter Parker costume in the specials menu.

Play as wrestler:
Successfully complete the game under the easy or higher difficulty setting to unlock the wrestler costume in the specials menu.

To unlock this easily, first unlock the "Unlimited webbing" cheat. When you get to the ring, zip to the top and keep on shooting Spidey Bombs.
Information in this section was contributed by Chetna fatty Mehra.

Play as a small Green Goblin:
When you have unlocked the Green Goblin from the secret store, enable the SPIDERBYTE code to be play as a small Green Goblin.
Information in this section was contributed by CAL.

Play as a small Shocker's gang thug:
Enable the THUGSRUS code. When the screen returns, enable the SPIDERBYTE code. During game play, you will be controlling a small version of Shocker's gang thug.

Play as a small policeman:
Enable the REALHERO code. When the screen returns, enable the SPIDERBYTE code.