Alien Hominid Cheats

On level 1-4 you must destroy the behemoth building if you do this
code correctly you should here a horn make a noise which means you
have gotten a rooster hat!

Go into the options menu and enter one of the following names as a player name. Select "Submit", and you will hear the foghorn sound if you entered the code correctly. Go into the hat menu and the corresponding hat will be unlocked:
 
Hat Name
2 (Tom Fulp) TomFulp
4 (Blonde hair) Cletus
5 (Red hair) April
7 (Jheri curl) Superfly
8 (Pirate bandana) Goodman
11 (Top hat) Grrl
12 (Diamond tiara) Abe
13 (Daisy headdress) Princess or Betty
14 (Dick Tracy hat) Dandy

Defeating Princess:
Run up against the well and shoot when you are fighting the giant eye monster princess and she will not be able to get hit.
Defeating the Tank:
Go to any ramp and stay out of the tank's sight. Use the Telekinetic Glove to take the ammunition when it spawns and attack the tank with rockets.
Hats:
Enter one of the following names as a player in the 'Options' menu then select 'Submit'. If the correct code has been entered you will hear the sound of a foghorn to confirm correct entry. The corresponding hat will be unlocked in the 'Hat' menu.
Hat 2 - (Tom Fulp) TomFulp
Hat 4 - (Blonde hair) Cletus

Hat 5 - (Red hair) April

Hat 7 - (Jheri curl) Superfly

Hat 8 - (Pirate bandana) Goodman
Hat 11 - (Top hat) Grrl

Hat 12 - (Diamond tiara) Abe

Hat 13 - (Daisy headdress) Princess or Betty
Hat 14 - (Dick Tracy hat) Dandy

In the Options Menu, where you can rename your alien, use the following names to unlock hidden hats for the 2 player game:

* cletus
* april
* superfly
* goodman
* grrl
* abe
* princess
* dandy

After fighting the Boss (giant green robot with the eye and a fork and knife) and his life reaches zero, he will start exploding. Continue shooting at his eye. He will just continue exploding as long as you shoot, and you will continue gaining points. You can stop when you have about 60,000 points. At the end of the level, you will gain about seventeen lives.

In the Options Menu, where you can rename your alien, use the following names to unlock hidden hats for the 2 player game:

* cletus
* april
* superfly
* goodman
* grrl
* abe
* princess
* dandy