This page of the guide to Star Wars Jedi: Fallen Order is dedicated to the prologue. It consists of two parts. The junkyard section helps you learn the basics of climbing. The part taking place on the train shows the basics of lightsaber combat. The hero will also have a duel with the Second Sister. However, this won't be a full-fledged boss battle.
The part taking place at the junkyard is very linear. Don't look for collectibles and secret places - you won't find them here. Follow Prauf. When the game starts, you have to climb a higher shelf and jump to the next. Next, you have to get through the narrow passage.
Jump on the inclined ramp to start sliding down. At the bottom, you need to catch the rope. Swing on it and then jump to the shelf located further.
Soon, you will reach the first interactive wall. Jump towards it and press the right button to grab it (L2 / left trigger on consoles) - this is the only way for Cal to start climbing. Get to the top shelf.
Look up and catch the red edge - you need to reach the higher platform. Walk on the narrow metal beam. You don't need to balance the body.
Squeeze through and jump towards the red edges. Move to the left while you are hanging down. Jump down when you are above a stable platform.
Climb the next wall - remember to press the right button to grab it. Keep moving to the side until you are above the orange platform - jump down on it.
Run and then jump towards the hanging rope. Swing on it and jump towards the interactive wall - remember to grab it. Move to the side and then land on the slant platform to slide down.
You are in a location with a wreck a huge ship - grab the rope and start climbing. Walk on the narrow beam and then jump to the red edge. Move to the left and press the button to pull the hook (see the picture above). Move further to the left. You will have to do the same with the second hook.
Grab the vertical interactive wall and get to the top. After a conversation with Prauf, you will slide down at high speed. Move from side to side to avoid hitting obstacles.
After you start hanging down, wait for the moment to press the button to use the Force. This will protect Prauf from death and start the second part of the prologue.
This stage is also very linear. You won't find any secrets or additional locations here. Keep moving through the next railcars. Soon, you will find yourself in a corridor - just run straight.
After "going back" to the train, a new cut-scene will play. Wait until you can use the lightsaber for the first time - eliminate the Stormtroopers.
After exiting the railcar, the game will suggest you learn how to block and deflect projectiles with the lightsaber. Block by holding down the button - this consumes stamina. Deflect projectiles by pressing the block button right before the hit the hero. They can be deflected right back to that Stormtrooper and kill him.
In the next railcar, use the lightsaber to destroy the cables and then interact with the console. The side doors will open. Walk on the narrow beam and grab the wall of the train car to start moving sideways.
The next tutorial is about locking the camera on enemies. This isn't very important when you fight regular Stormtroopers, but will come in handy in the later stages of the game when you face stronger opponents.
You can also try out the very useful parry useful against melee attacks - activate it by pressing the block button just before the melee attack reaches Cal. The enemy will be stunned and vulnerable to your next attack. You can also test the Force skill which slows the enemies down. Remember, however, that this ability consumes a lot of Force bar. To restore it, you must perform successful attacks on enemies.
After fighting, use the Force to slow down the fan. You can now grab it and climb into the hole in the ceiling. Defeat more enemies. You can attack one of the enemies by jumping on it - press the attack button when the corresponding icon appears during the jump.
Grab the edges, move to the side and reach the roof of the next railcar. Deal with a group of Stormtroopers standing on a large platform. Enter the new railcar, destroy the cables with the lightsaber and move straight.
In the next section, you have to avoid fire from a hostile flying machine. This part also serves as a tutorial for sprinting. Sprint to the next obstacle right after the vehicle stops firing. Don't leave the cover until it is safe.
You have to get to the place where you can jump towards an interactive wall. The climb will be quite exciting. However, you shouldn't have problems with completing it.
Run through the burning railcar and then climb again. Watch out for the Stormtroopers with blasters standing in the distance. Also, new enemies will appear on the left. Deflect their shots to eliminate them. As for the opponents equipped with melee weapons, eliminate them by parrying their attacks.
Go straight. Complete another section during which Cal is sliding down. Avoid hitting obstacles.
Duel with the Second Sister
The first fight with the Second Sister isn't a full confrontation with this boss - you don't have to deplete her entire health bar. This fight can end in two ways - when Cal loses his entire health bar, or when enough time passes.
This fight with the Second Sister is a tutorial on how to avoid "red attacks". They cannot be blocked - the only solution is to dodge. Press the dodge button twice to roll.
Attack the Second Sister after dodging her attacks. However, this isn't a fight that can be won. You must keep fighting until the game plays a cut-scene during which Cal escapes in a spaceship.