You're welcome. Getting the bad ending is easy, getting the two "true endings" is more difficult and requires some esoteric thought processes. I am quite proud of how I've hidden the important passwords in the game.
If you want, a simple, spoiler free and hinting instead of outright answering guide to getting all the endings read below.
Good Ending?: Complete the game without achieving any other endings.
Bad Ending: Fall at the last hurdle.
Secret Endings 1: Find the secret files, input the secret code you get from looking within instead of the one the game asks for. Make a choice at the ending.
Secret Endings 2: Find the secret files, input the secret code you get from looking within instead of the one the game asks for. Make a different choice at the ending.