There is a path to the south then west that a few people missed first time round I think - once you see it you will wonder how you didn't see it first time but I was the same lol.
From the entrance stairs, look for the FIRST way down as you go to the right. Once you are in the new map, explore and eventually you'll find your lil' green friend.
hi i cant find him where must i go afther the first pad i went the way down and then i go by the second map must i go left or right i fifht and fight but can find the pad to find my friend gr anja