Dig next to a flower to get an extra life.

Destroy the Benemoth building. You should hear a foghorn sound to indicate that the hat has been unlocked.

Destroy the "Fish Are Like Plants" building. You will hear an foghorn sound after the building is destroyed, and the curly hair will be unlocked.

There is a flower in the sand. However, if you dig down to get it, a big green thing will eat you before you take it.

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.

Complete level 1-5 and the Super Soviet Missile Master mini-game will be unlocked after the intermission sequence.

To unlock these hats, enter the following names as the player name:

Password - Effect

grrl - Unlock Hat #11
abe - Unlock Hat #12
cletus - Unlock Hat #4
april - Unlock Hat #5
superfly - Unlock Hat #7
goodman - Unlock Hat #8
tomfulp - Unlock Tom Fulp Hair Hat
princess - unlocks hat 13
dandy - unlocks hat 14