To clear this up, I'm going to list all of codes I used last night.

List:
#Infinite Health
#Unlimited Medkits
#Flash
#FTB1 Lock-On Style
#Ghetto Skywalk
#Infinite Ammo
#Perfect Shot PrimaryFTB2
#Secondary Upgrades
#Primary Upgrades
#Infinite CE
#See through walls
#Lockon Distance

All of these codes worked for me.

Also, are there any working Knife codes? 'Cause I got into a hack fight yesterday and couldn't Knife while my enemy could, so you know how that went.