What is the password for level 99 to never ending level game?

hi , Right-click

and press "Play". Click "Start", then right-click and press play again; a button should appear. Click that, then right-click and press play again and madly click at the middle of the screen, where a button will flash for a split second (may take a few tries to get it). Once you get it, right-click and press "Back". That should get your the passWord