Wheres the connor's lab level 13

Answer from: spiderguy
This is how to get to the end level There are 2 ways but both paths converge into 1 and you have to fight the villan nattie before getting there but if your talking about the part where you go to his sewer lab you will be in a sewer follow the path until you see lizard people in some acid hop over a fence barrier and go right doors will open up along the way there will be a big room with a door at the end thats the entrance to his lab