Madness: Project Nexus cheat codes:
1. When you get rid of your weapon, you throw it. So, when your gun
is out of ammo, throw the gun to where it hits an enemy. You can
also do this with a melee weapon, because if an enemy gets hit
with an object, it can severely damage or even kill them.
2. When you get killed in Arena Mode, you lose the weapon you are
holding, but you do not lose the weapon in your sidearm. If you
are about to get killed and you have one weapon, quickly put the
weapon in your sidearm before you get killed. If your are about
to get killed and you have two weapons, quickly choose the weapon
that you want to keep and put it in your sidearm before you get
3. In Arena Mode, you have a short time between the time that it says
WAVE COMPLETE and the time that it shows how much money you have
and your rank. Within that time, you can get rid of and pick up
weapons so you can have new and/or better weapons for free.