As you slide into this area, you will immediately see a pot to your left that contains an emerald.
Head over to the gray lever to raise the gray platform to set up a trap for our lizard friend. Climb up to show yourself to the lizard. Before heading back down, grab the Twin Snake fragment from pot near the top area of the screen just by the exit.
Now head back down and lure the lizard to the gray platform. Make sure you pass through the gray platform so it copies the path you take. Head over to the gray lever and flip it to lower the gray platform. Climb back up and hit the brown lever. The path to the next area is clear.
Pick up the spear and activate the brown lever to move the brown platform backwards and clear the way for later. Pass in front of the lizard to get it to follow you. Head to the side of the wall and go down to the left gray lever but don't activate it.
go across to the other lever and flip that one, cutting off the lizard's path and raising the gray platform. Head up the now raised platform and throw the spear at the other lizard. As you head towards the exit, the giant snake you've been seeing will knock you off the area and into the next.