Mode

Code

Double guns.

Y - X - Up

Enemies more accurate.

Y - B - Left - Left - X

Inaccurate enemy fire..

B - Left - Y - Up - Down

Increase challenge.

Y - B - Left - Left - X

Invisibility.

Y - Y - Up - Up - Y

One hit kills.

Y - X - X - X - Left

Power punches.

Down - X - Left - Left - Left

Remove target reticule.

Up - Up - Down - Down - Up

Unlimited ammo.

Up - Left - Down - Right - X

Unlimited armor.

Up - Up - Up - B - Down

Unlimited health.

B - Y - Left - Up - Right

Unlimited shotguns.

Right - X - X - X - B

Unlimited stamina.

X - B - Y - X -  Down

Unlimited dual Guncons.

Y - X - Up - Up - Up

Unlimited human shields..

B - Y - X - Y - B

Unlock all.

Down - Left - Down - Y - Down

Unlock disarms.

B - B - X - X -  Right