Select a map file in the "maps" folder in the game directory (for example, "LowerParadise"). Copy the file to a different directory. Rename the map and put "cus" before the name. (for example, "cusLowerParadise"). Cut and paste the file back into the "Maps" folder. Start the game, go into the options, then select "Custom Maps". The map you copied will appear. Highlight it, then select "Load".
Various Codes
While playing a game, press [Shift] + ~ or @ to display the console window. Enter "sissy" to enable cheat mode, then enter one of the following codes at the console window to activate the corresponding cheat function:
Effect - Code
1% health - alamode
1% health and drop current weapon - iamsolame
$5,000 - jewsforjesus
All weapons - Gunrack
Armor - blockmyass
Cats bounce after being shot from gun - boppincats
Cat silencers for shotgun and assault rifle - catfancy
Cat-nip - iamtheone
Cop suit - iamthelaw
Crack pipe - headshop
Disable God mode - set P2Player BGodMode False
Disable rockincats code - dokkincats
Disable boppincats code - splodincats
Doughnuts - piggytreats
Dog treats - boyandhisdog
Drop your current gun or weapon - packnheat
Enable God mode** - set P2Player BGodMode True
Extra ammunition - blastacap
Flight mode - fly
Gimp suit - smackdatass
No clipping - ifeelfree
Radar-related items - swimwithfishes
Rocket cameras - fireinyourhole
Shotgun and assault rifle shoot cats - rockincats
** This code must be re-entered after each load screen or new level.