Oddworld: Soulstorm – How to get all secret areas in Sorrow Valley
There are five secret areas in this chapter and, entry to all the Secret areas is from below the train.
Secret Area #1
You will find the secret area at the start of the chapter. Once you start riding the train, dropdown. You can use monkey bars to enter the first compartment of the train. Here you will find the first secret area.
Secret Area #2
You can find the second secret area just after the ‘Rock Candy’ tutorial.
Here you have to drop the hanging boxes to kill the slig and extinguished the fire. Now use the monkey bar to enter the previous compartment from below. Here you will find the second secret area.
Secret Area #3 & #4
Here you have to possess a flying slig and use it to destroy the barricades at the bottom. 1st barricade is below the train compartment just before ‘ Boxcar Lounge’ (see image) and the second barricade is 2 compartments ahead.
Secret Area #5
This secret area is available after ‘Mama’ Boss fight. Here also you have to possess a flying slig and use it to destroy the barricades at the bottom. This barricade is located just before the engine.
Also, you will find a lever below the train, use the same posses slight to pull it. This will open two platforms to help you to reach the bottom monkey bars. Now use the monkey bars to reach the last and final secret area.