It took me nearly 30 hours of playing time, Gerry, to get through it all.
Rhem 2 took me at least 10 hours longer because of the maze with the glass walls.
MaG,
The Rhem games are difficult but wonderful puzzlers. As you play, you learn that the clues to every puzzle are there for the looking, but you have to be very observant and take really good notes. I walked around for the longest time in one section before thinking to look up, and I've learned how important the reverse side of doors and hatches can be. Having a decent sense of direction and a good map helps, too.
acebook
witter
Anyway, I'm now in the black crystal elevator with the 4 sets of 3 triangles open. I have notes for the red, yellow, and green sets and the corrections from the back of the floating bridge door, but I never stumbled across the blue set of triangles. Can you tell me in what area they are hiding? I must have missed closing a door or raising an elevator somewhere, but I want to be in the ballpark when I begin my search for this last clue. 
