Hidden Carnival Level In the Carnival level by the ferris wheel, there's a haunted house. In front of the house is a rail on the ground grind the rail and for a short time you will be in a special zone. (Thanks to eprotsko@frontier.net)

Unlock all levels and cheats  Before you start a game on the main menu, go to options and go to cheat codes. While in that section type in watch  me   xplode. You'll then here a money sound and when you start a career you will have all the levels and all the cheats and people. (Thanks to eprotsko@frontier.net)