for people asking about the clear boss history go into the internet go left and go to the plant icon with the ring around it it will warp you to a area with yellow colour scheme where you will have to find and kill 20 whores to clear the bosses history
rodrigozeba oh in order to even get to the area to get the key there go to the suberbs and go in to the building with all the policemen and the ladders (its the second to last suberbs area) get to the top and go to the the door where u can get a tip and jump to the right you will land on an area called treetops jump across the platforms till you get to the area with a car button use it and then do what i already told u before
rodrigozeba if your talking about the key inside the box like area with 3 birds you need to get a car drive it a max speed and jump out and go through the green scenery floor of the box like area (which you can go through) then you can get the key
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