This game is also available on PS2.
Retro Game Cheats for Operation Winback (Nintendo 64)
Effect: Every level will now be available for you to select from a new option
on the main screen
When:
At the title screen
How:
Enter The Following: Up, Down, Down, Right, Right, Right, Left, Left,
Left, Left, Hold C-Down And Press Start
Left, Left, Hold C-Down And Press Start
Submitted By:
Freeola
Effect: Now you will be able to acess all characters in multiplayer mode
When:
At the Press start screen press
How:
Press ,Up, Down, Down, Right, Right, Right, Left, Left, Left, Left, Hold C-Up And Start
Submitted By:
Freeola
Effect: Seceret multiplayer weapons
When:
During the battle, playing as Thunder
How:
Press R To Activate A Laser Sight For Your Flamethrower, Then Press B To Fire It
Submitted By:
Effect: unlocks sudden death mode
When:
at the \"Press Start\" screen
How:
Quickly Press C-Left, C-Right, C-Left, C-Right, C-Up, C-Down, C-Up, C-Down, Then Hold L And Press Start
Submitted By:
Freeola
Effect: One shot, one kill
When:
before the demo begins quickly type in the code
How:
Press C-Left, C-Right, C-Left, C-Right, C-Up, C-Down, C-Up, C-Down. Then When The "press start" Screen Appears Hold L And Press Start
Submitted By:
Unknown
Effect: Trial mode
When:
at the main menu
How:
By Pressing (On The D-Pad) Up, Down, Down, Right, Right, Right, Left, Left, Left, Left. Then When The "press start" Screen Appears Hold C Down And Press Start
Submitted By:
Unknown
Effect: C4 (only in multi-player mode)
When:
Begin a multi-player game in the factory-1 level.
How:
Any character can use C4 by pressing down.
Submitted By:
Effect: Extra medikit
When:
In Single Player Game
How:
At The Start Of The Game, Where You Get Your First Ammo Pack, Don't Kill The Badguy. If You Hide Behind The Crate Where The Ammo Is He Will Put A Medi Kit On The Table
Submitted By:
Unknown