Extra money
Move the pointer to the top left corner of the screen and press [Ctrl] + 4.

Dressed villagers
Click on the village when in Africa. Then, click several times on the man until he changes into a shirt and shorts.

Cheat Codes
While playing a game in 3D mode, enter one of the following codes to activate the corresponding cheat function. Note: Scores will not be recorded when any cheat is enabled.