I've Finished 1213 ep 3. Don;t know what to do with the code

[Mr. Suit]

Hi, i've finished the last episode of 1213, and i've used the code on the first machine in the cafeteria and the only thing i;ve found different is a golden pass before entering the train. What should i do with it???

[Akatosh]

Just hang on to it.

[Lionmonkey]

You need to 

Spoiler

bring it with you to the end of the game

[close]

in order

Spoiler

to get a secret ending.

[close]

[firestarter00]

This is not directly relevant to your question, but since you said you finished 1213 ep.3 I have to ask: how did you do it? I'm stuck at the last scene with the blinking white robot around me, I've figured out that thing with the lights but I don't know what to do... I've been shooting at the robot for a while now and nothing happens... What am I doing wrong???

Hi, i've finished the last episode of 1213, and i've used the code on the first machine in the cafeteria and the only thing i;ve found different is a golden pass before entering the train. What should i do with it???