Open "Game.ini" file with notepad, search for these two line "QuickBoot=0"
and "ShowVersion=0". Change both of the "0" to "1" for the discribed functions
below. Also make sure "EnableDebugMenu=1" is there (the game should generate
it by itselves, but check to be sure).

QuickBoot=1   - Will give you access to a build in level selector.
ShowVersion=1 - Will give you access to a build in debug menu.

The debug menu includes the following options:

-Collect All Lemons
-Soak test
-Unlock all levels
-Jump to End of Level
-Invulnerability