To enter cheat mode
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "l2.ini" file in the game directory. Add the line "Cheat = 1". Begin game play and use the "Prefs" selection to access the cheat options

Sound test
Click on the hole on the tree at the lower left corner of the main menu screen

View word bubbles
Click on the dot belonging to the letter "i" in "Lemmings". Comic book style word bubbles will appear when the lemmings "speak".

Level select
Click the following corners in order at the main menu: top left, top right, bottom right, and bottom left.