WinBack: Covert Operations

1-hit kills
Beat the game on hard difficulty with the
best ending and Sudden Death Mode
opens up, where one hit kills (you,
enemies, bosses, objects).
submitted by Ed Shih

All Multi-player characters...the easy
way
At the main menu when it says press start,
press Up, Down, Down, Right, Right,
Right, Left, Left, Left, Left, C-Up + Start.
submitted by Kentos Maximus

All Multi-player characters...the hard way
To unlock these characters, complete Story or Trial mode with the
following scores: 

Lila - Score more than 13,000 
Leon - Score more than 15,000 
Ryan - Score more than 17,000 
Thunder - Score more than 19,000 
Duke - Score more than 21,000 
Gunt - Score more than 23,000 
Banderus - Score more than 25,000 
Jin - Score more than 27,000 
Deathmask - Score more than 29,000 
Cecile - Score more than 31,000 


submitted by Christian Ferrier

Defeat Bandelus
To beat Bandelus first quickly crouch-run and roll beneath the blue laser.
This will be helpful later on. Then put you back to the wall you were facing
when you first started the fight. Bandelus will run into the next room, but
before you continue, shoot the farthest barrel until it blows up. This
deactivates the blue laser in front of you. Then run to the steel crate, and
while your running, count to three then roll. If you did it right Bandelus's
shots will miss you. Next put your back to the wall near the crate. Pop out
and shoot Bandelus, I recommend shotgun but you can use whatever you
want. When his life is at 3/4 two guys will run from the room you started
in. If you successfully rolled under the laser in the beginning the trap will go
off and kill them both. If not, using your submachine gun, push A to get
away from the wall but DON'T MOVE! If you do Bandelus will catch you
in a cross fire. Take out the guys and return to the wall. When his life is at
1/3 he will rush at you. Him him with the machine gun and HIT HIM
HARD! Drill at least a seven round burst into him. He will rush again and
again so run to the first room and keep sniping him when he shows up. He
will die soon after that. 
submitted by Hamesh

Defeat Turret-Gun Boss
To beat the boss with the turrent gun start out against the pole where the
movie ended. Back up from the boss (with pistol in hand) to the bottom
right, out of his firing range. Blow up the boxes against the pole. Then get
your back against the pole and swing out to the right or the outside. The
next pole down there will be barrels. Blow them up and then run to that
pole. Get in the same position when you shot the barrels and switch to
another gun. After he is done firing swing out to the left or inside and shoot
him a few times. Keep on repeating until he dies. He won't move toward
you at all until the last few shots. 
submitted by hailjh

Defeat the Fire Boss
When you first start out there are two men on boxes going back and forth
and the boss is runnig right by a box, when he gets near to it shoot the box
and it will blow up and do alot of damage. Then get rid of the two men on
boxes after they are gone run(or roll)up to the boss (avoiding his fire) and
crouch right beside him. Once there you can take as many shots as you
want and the flames won't hit you. Also when the flame thrower boss is
flashing (after he takes damage) his flames flash as well. In other words, if
you hit him right before his flames hit you, you won't take damage because
he's flashing. 
submitted by southson7 and Ed Shih

Defeat the Rocket Launcher Boss
Here is how to beat the boss with a rocket launcher. First you must switch
to shotgun or machine gun. Second lock on to the boss using the C-down
key. Next run back and forth across the room stopping suddenly and
going the other way. Each time you stop fire a few rounds at the boss. 
OR
You use any gun and lock on to him with down c, then when he shoots
rockets you roll underneath him and get back up and start shooting him.
After while you end up killing him, by using roll technique. 
submitted by Mastermind and Mafia

Extra medkit
In the beginning of the game when you get your first ammunition pack, do
not kill the bad guy. If you hide behind the crate where the ammuntion
pack is, he will put a medical kit on the table in the right corner of the
room. 
submitted by Josey Abad

Flame Thrower In Multi-Player Mode
First you have to unlock the boss characters. Then while playing in multi
player mode choose Thunder as your character. Now while in the game
press R to raise weapon, then press the reload button to fire your Flame
Thrower.
submitted by MonkeyMan

Greater lock-on range for pistol
If you need a farther lock on for your pistol, switch to your machine gun
and then switch back to your pistol. You will then be locked on.
submitted by zelda king

Infinite Health
At the title screen, enter the following: Down, Up, Up, Down, Down,
Down, C-Left, C-up, then hold C-Up and press Start.
submitted by Kyle Sleeper and mew43

Trial Mode (Level Select)
To unlock the Trial Mode to play all of the levels in WinBack without
beating the game, enter this code:

At the "Press Start" screen, enter the following: (On the Directional Pad)-
Up, Down x2, Right x3, Left x4, then hold C-Down and press Start. You
must do this before the movie/cutscene starts playing or the code will not
work. After a message about a Controller Pak, you chould hear a gunshot
which tells you that the code worked. Trial Mode should now be available
in the menu. 
submitted by Magnum2684

Unlimited Ammo
If you beat the game on the normal difficulty level, you may play the game
with Max Power. This gives you infinite ammo for every weapon.
submitted by Garth Craigen