Where can i find the key in lower laboratory?
The ground floor of the lab you mean?It should be located in one of the four rooms in the bottom right of the map :)
Not that floor with 4 offices...i mean the other lab under this floor
Oh, all of the doors on the basement floor should be opened by completing the puzzle of the panel next to the doors :)
I completed it and scanned the whole area... remaining the main exit in the upper floor at the middle bottom of the map
Wait, are you trying to find a key for the front door on the ground floor of the lab?Sorry to say, but there isn't a key for that door, you're supposed to just continue through the tunnel after the boss fight in the lab.
Boss what?
Where is this and is the tunnel?
The boss fight for the lab should be on the basement floor, at the top centre of the map. :)