Secret entrances:
At Nightclub Row, when you are in Early Q's nightclub, the jerk man there named Hanoi, will not let you go further into the club or into the door at the top of the screen to left. To get into the nightclub further, click on the girl on the stage dancing to the heavy metal, and Hanoi will become distracted. When he stops in front of the girl, walk over to the rotating table to go further into the club. Then later, after the snake dancer's performance, you can go back to the first room and enter the door mentioned earlier. Hanoi will be watching the snake dancer.

Unlimited money:
Begin a new game under the "Easy" difficulty setting. Play until McCoy stops in front of Runciter's Animals store, then restart the game under the "Easy" difficulty setting. The amount of money available should now be displayed as infinite on the menu screen.