Total Annihilation

Code	Effect
+ATM	gives you 1000 metal and energy
+Bigbrother	Units talk when you move them
+bps	Shows the data transfer rates in multi player games
+CDstart	Starts the CD music
+Combustion	Kills all enemy units
+Contour#	Displays a 3D contour # = 1-15
+Control#	Use a different skirmish AI
+Dither	Use dithering instead of LoS
+Doubleshot	All weapons do twice the damage
+Halfshot	All weapons do half the damage
+Honk	Units honk when they stop
+ilose	Try it and find out
+iwin	For losers only!!
+Infrared	Toggles off the fog
+KILL#	kills an enemy. # = 1-4
+LIGHT	hide the shaded objects. Makes the buildings dark
+LOGO#	change your color, # is 0-10
+LUSHEE	Limited resources increase
+MAKEPOSTER	screen shot of the whole screen in .bmp format
+MAPPING	Covers screen with darkness
+METEOR	Causes a random meteor shower
+NANOLATHING	doubles nanolationg, and metal usage
+NOENERGY	drops your energy to 0.
+NOMETAL	drops your metal to 0.
+NOSHAKE	stops explosions from shaking the screen
+NOWISEE	shows you the whole map and disables LoS
+RADAR	gives you full radar coverage
+ReloadAIprofiles	AI profiles reloads AI
+SETI	Toggles radar mini map on/off
+SHAREMAPPING x	Share map info with x. x = enemies or allies
+SHARERADAR x	same as above, but with radar
+SHOOTALL	your units shoot all enemies encountered
+SHOWRANGES	hold shift while mouse is on a unit and it'll show it's range
+SING	makes units sing when given orders
+SWITCHALT	use # keys to select squads without using alt
+TILT	Max out men and material
+VIEW#	shows you how much metal and energy player # has
+ZIPPER	Speeds up the unit building process

An easy way to win is you have to build an aircraft plant really fast then build an atlas. After you have done this load the opponent's commander and self-destruct. (this is also a very cheap way to win)

When you are at the single player game page type DRDEATH and a Cavedog bone wil appear between the Load Game and Previous Menu icons. If you click on the bone it will take you to a Play Any Level screen where you can play any TA mission, even if you haven't earned it yet.