To access the doors which allow you to skip to
levels 5, 10, 15 and 20, open up the Cycloids
application and go into the MiscDatai directory.
Load the file LSStuff into Edit, delete the only
byte here and replace it with the required level
skip (ie hold down [Alt] and type in 5, 10, 15
or 20 on the keypad) and then save it.