Using this Trainer:

Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.

Listen for "Activated".

Press desired option key

Options in Promo:

Numpad 2: Unlimited Population

Options:

Numpad 1: Unlimited Resources

Numpad 2: Unlimited Population

Numpad 3: Godmode Team 1

Numpad 4: Godmode Team 2

Numpad 5: Goo Resource

Numpad 6: Unlimited Missles/Bombs

Numpad 7: Instant Buildings

Numpad 8: Instant Units

Numpad 9: Freeze AI Resources

Numpad 0: Low Mother Goo

Notes:

Numpad 1: Unlimited Resources - toggle this on and your resources are locked high.

Numpad 2: Unlimited Population - toggle this on and you can have unlimited population.

Numpad 3: Godmode Team 1 - toggle this on and team 1 (usually the player in the campaign) units cannot be killed.

Numpad 4: Godmode Team 2 - toggle this on and team 2 (usually the AI in the campaign) units cannot be killed.

Numpad 5: Goo Resource - this option has three settings. Toggle on for massive Goo mother health/resource. Press again to lower Goo mother Resource/health to just below the max value. Press again to turn the Goo Resource option off.

The Goo Mothers are unique and the way the game is programmed you have to do something to affect the Goo Resource/Health of the Goo Mother for the game to 'recognize' the amount that you have. The best way to handle the Goo Mother(s) if they are not allowing you to build anything is to toggle the option to the second setting for a few seconds and then toggle it off. Next, take your Goo Mother to a Resource point and let it gather a few resource. You also may need to turn off GODMODE temporarily to allow the Mother Goo to collect resource and increase Health. Once the Mother Goo is topped off then you can turn on the Goo Resource option again to the first settting which will keep the Goo to very high resource and you can build at will. You will have to turn this option OFF when tryin to defeat the Enemy Mother Goo.

Numpad 6: Unlimited Missles/Bombs - some units have ammo like missles or bombs than it has to reload or go back to base to replenish. This will prevent them from running out.

Numpad 7: Instant Buildings - toggle this on and most buildings will complete very rapidly. Leave off when not necessary to prevent AI usage.

Numpad 8: Instant Units - toggle this on and most units will complete very rapidly. Leave off when not necessary to prevent AI usage.

Numpad 9: Freeze AI Resources - toggle this option, and any non-human AI that are NOT Goo Faction will have zero resources and will not be able to continue expansion.

Numpad 0: Low Mother Goo - toggle this on, and any mother GOO that is stationed over a Resource point will instantly have 1 health. This also occurs with YOUR Mother Goo if you are using Goo faction, so keep that in mind.