Resident Evil Zero Walkthrough #1
The Train

Walkthrough #1 - The Train

Starting the game, go to the location marked on the map below to get the Dining Car Key

Go back and use the Dining Car Key

Go upstairs and after the cutscene just get back downstairs to save ammo as you don't need to fight the Mimicry Marcus.
After the cutscene of Billy saving Rebecca, leave Billy and climb the ladder using Rebecca; the reason for that, as explained in the introduction, is that Billy has more HP and Attack Power and whoever you use to go up will be locked for a while.

Move forward and Reconnect the Cables

After falling pick up the Conductor's Key

Put the Conductor's Key in the Service Lift and send it

Switch to Billy and pick up the Conductor's Key from the lift downstairs

Go to the Conductor Room and use the Key (Save the game before going through)

Pick up the Train Map

Pick up the Briefcase

Flip the Switch and climb up the ladder

Proceed and pick up the Ice Pick

Room 101 contains supplies and the Hunting Gun; pick what you can and get back to fight the first Boss, Stinger The Scorpion

An easy way to defeat Stinger without the use of Ammo is by using your Knife;

Always let Stinger come to you, aim down and hit it and it will go back, if it gets ready to launch at you, move back then get close again;

This may take you some time but it's the best way to save Ammo and Recovery Items.

Also be careful of Stinger's death attack, when you defeat it, wait until it goes down to proceed.

Here is a video on how to defeat Stinger with Knife only:
Youtube Video

After defeating Stinger, pick up the Panel Opener

Now go back to the Service Lift and send the Ice Pick to Rebecca

Switch to Rebecca, pick up the Ice Pick then use it to unlock the door and reunite with Billy downstairs

Use the Lift Opener on the Lift and go through the crawl space

Two Dogs will attack you, take care of them and pick up the Gold Ring

Combine the Gold Ring with the Briefcase and go through the next door (you will find the other ring for the Briefcase later on)

Have one of the characters pull down the lever and the other pick up the Hookshot

Now go to the location marked on the map below and use the Hookshot on the open window to climb up

Go through the crack on top of the cabin

Pick up the Jewelry Box

Examine the Jewelry Box to get the Silver Ring and combine it with the Briefcase to unlock it; inside you will find the Blue Keycard

Reunite with Rebecca downstairs and use the Blue Keycard on the door to the driver's cabin.

After the cutscenes, you will need to leave a character in the driver's cabin while the other go all the way back to engage the control device for the brake.

Choose Rebecca to stay since Billy has more offence power or choose Billy to stay if you want to see a cutscene with Rebecca meeting Edward as a zombie.

After choosing who stays, pick up the Magnetic Card

Go all the way to where you picked up the Hookshot and use the Magnetic Card on the Hand operated Brake

As shown in the image below, once the Hand operated Brake is activated, a number will show up;

What you need to do is get to that number by addition of 10 numbers using the number pad;

36 = 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 9

The other possible numbers are 67 and 81:

67 = 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 4
81 = 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 9

After engaging the control device for the brake you will switch to your second character and will have to do the same thing with a different number (solutions above); the only difference is that you can only see the number you need to reach.

Congratulations, you've stopped the train… technically.

All items that you‘ve dropped in the train will be scattered around where you woke up.

This was the walkthrough for the Train; next up, The Training Facility.