I already reached that point. As mentioned above, he throws you in a random room, or you do thru the left wall. The problem is as follows:
Let's say you number the unmapped rooms as follows:
1 2
3 4 5 6
7 8
The room that's impossible to get into is the room North of 1. You can bomb the wall at the top of the room South of 7. Room 7 gives you the hint that it's thru the middle.
Room 6 has the gorilla.
As for the other rooms, here's what I have found:
From Room 1, you can only go thru the wall to the room West of 1.
From Room 2, you can go thru the wall North to a mapped room. From there, you can go North, North, West, South, but then you can't get to the room just north of 1.
From Room 3, you can go thru the wall West to a mapped room on the west side, or you can go thru the wall East to 4.
Room 4 gives the message that if you are sick of being thrown in a Random room, go thru the west wall of 6 Quickly.
Room 5 allows you go to North thru the wall to 2 or South thru the wall to 8.
Room 6 is the room that throws you in a random room (1, 2, 3, or 5 it seems) unless you go west into 5.
Room 7 can only be reached via bombed wall from the entrance
Room 8 you can only go thru the south wall back out to the mapped rooms.
So the only way out to the top is thru the Room 2 north wall, and if you label the rooms as follows:
1 2
3 4
5 6 7
When you go thru the Room 2 North wall of the "eye", you land in Room 7. 7 only lets you go to 4. 4 to 2, which 2 has a fairy to refill life. 2 has a door to 1. 1 has a door to 3. I can't get from 7 to 6, 3 to 6, or Room 1 of the "Eye" to 6, and you need to get to room 6 in order to reach Room 5, which has the Blue Ring.
How do you get to Room 6 in the second diagram?