Start by running to the right and climb up. You can enter the first secret area by going right and going down the trap door that is located behind a barrel.
Secret Area 1:
Use the lever to get past the electricity and then get to the ledge. When you drop down, quickly run and drop to the next floor before the slig gets you and chant to possess and kill him. Go back up and use the lever on the top to remove the electric barrier and get the 3 mudokons across the meat grinder. When they are down to the next floor, use the lever to make the meat grinder slow for the mudokon on the far left and then motion for all of them to follow you and he will fall to the lower level. Chant at the bird portal and set them free.
Go through the door and down the path. Then run and jump over the pits of mines. Possess the sleeping slig and have him pull the lever to deactivate the barrier. Go past the mudokon but do not pull the lever. Go to the other Slig and shoot him to death and then kill the possessed slig. Recruit the mudokon you passed and use the elevator to go down and save him and the other mudokon below. If you head back up and go to where you electrocuted the slig, you can find "Secret Area 2" behind the barrel. Another secret area (3) is down below behind the barrel near the electricity.
Secret Area 2:
Jump across and get a grenade. Throw it at the chant suppressor and possess a slig. Have him kill the others and then get rid of him. Blow up the other chant suppressor with a grenade and set the Mudokons below free. Get a grenade and run back to the area where you jumped over the mines. Throw a grenade in the second pit and go into "Secret Area 2".
Secret Area 3:
Get the two mudokons from the top right and have them follow you down past the grinder and set the 4 of them free. Use the lever and then roll quickly under the grinder. Climb up and pull the other lever to slow the grinder down. Recruit the other 5 mudokons and rescue them and head back up.
Now go back to the lever which was not supposed to be pulled. Pull it and head down the shaft to enter "Secret Area 4".
Secret Area 4:
Jump across and get the grenades from the machine. Use one to throw at the slig while he is sleeping to kill him. Go down and throw another grenade at the mines below and then lead all the mudokons to the portal. Throw another grenade up at the chant suppressor to blow it up and head through the portal.
After you go down with the elevator, go through the door to enter the next area. Go and rescue the mudokons here and then climb up. Wait for the slig to pass under the chant suppressor and use the lever to kill him. Go across and climb up and use the trap door lever to get rid of the other 2 sligs. Disarm the electric barrier and then free the two mudokons. If you go to the first trap door and jump down, you will enter "Secret Area 5".
Secret Area 5:
Jump into the smoke and stay still until the slig goes back to sleep and sneak to the right. Leap across the gap and when the other slig goes to sleep, leap across the gap and quickly crouch roll under the grinder (or quickly drop down and pull the lever and then climb back up). Get a grenade, cook it, and then throw it at the chant suppressor. Possess the top slig and kill him. Then possess the bottom slig, pull the lever, and have him walk on the mines. Recruit the mudokons and rescue them and leave through the blue portal.
In the next area, possess the slig on the other side and kill him. Sneak into the smoke so the other slig can’t see you and climb up when he’s not looking. Use the trap door lever to kill him and then get the three mudokons to the portal (one is hiding in the smoke). Climb up and deactivate the mine when it turns green (wait until it makes a longer green beep). Bring the other two mudokons down and into the portal. Jump across the gap and then use the lever on the slig when he is below the grinder. Slow the grinder for the mudokon near the portal and rescue him. Time your jumps right to get across the meat grinders while avoiding the falling meat.
On the other side, go past the elevator and use the lever to get past the grinder. Move the mudokon out of the way of the meat chute above and over to the left. Now move so that the sleeping slig is on screen and then start running to the left and use the lever to activate the meat chute to knock him out from above. Round up all 5 mudokons in the area and get them through the portal. Use the train and rescue the sole mudokon on the other side.
Go down the elevator and to the left. Walk underneath and climb up as soon as the slig comes down. Use the lever to electrocute him. Go left and use the lever for the pulley and get grenades from the other side. Pull yourself up and throw grenades at the sleeping slig and the mines. You can jump down to where the slig was to enter "Secret Area 6".
Secret Area 6:
You need to roll and time it just right to avoid the pits and grinders. When you are across, pull the lever to stop the grinders and crawl into the vent. Then walk under the platform to get the slig’s attention so he comes down and you climb up. Possess and kill him and then free the last mudokons in the area and leave the area.Climb down and go back up the pulley and then roll into the Stockyards.