Any hints please?

[Lucathegreat]

This is my current situation: http://i.imgur.com/ntVHXrL.png
I miss 7 endings (with the last one being very cryptic I guess) but don't want to look at step-by-step guides, I like to figure things out on my own, if possible. Still, I'm stuck and have no idea what to do next.

Here are some things I can see, but have no clue if they'll lead me somewhere. (spoiler just in case)

The 42 hinted by the demon baby poster. No idea if it's relevant and where. Same as the "Green" next to it. Tried the colored buttons taking green as 2, but no clue about the rest.
The strange hidden sequence of 0-23, 1-4, 2-1... It looks like some sort of Fibonacci, but I can't find any relation between the second digits. Nor if they're letters (23=w, etc.).
The other hidden things: OSTAP (?), those 4 symbols that repeats around the morse buttons, the ninth planet (Pluto)...? There are so many things there that my guess is they're all related to the final ending
the colored buttons: pressing red 4x as suggested opens up a "keyhole", but I have no key
the god**mn 666 keypad: "devil" and Illuminati ending both show Hourglass, Eye, Two waves, Key. I press them (and also tried others like Pyramid, Pentacle..) but nothing happens. :(
The clocks behind the instruction board. They glow green after a while, but the whole D1, B icons have no meaning for me. Same for the D4 thing that pops up on the right, I believe the're related but can't find a way to open it (if it's even possible). Plus, there's a keycard opening or something like that.
The 9-digits panel below, after wrecking the main screen cables. Tried the 8 equation digits + 4 (from D4), nope. Not sure if the "d" from the equation has any meaning, though
The music buttons: I got one tune, but the other has another lower note that can't be played there; I guess there's nothing else to do there, though
"Pisano Leonardo"... ? What's that supposed to mean? Leonardo da Vinci? He wasn't Pisano (from Pisa) though, lol. Or maybe is the name of the developer?

I think that's all I can see, can someone give me a hint about how to proceed or if I understood something right?
Really liking this game, but damn it's hard to figure out! :P

[Lostillusion]

Hidden sequence- That's not a 23. After that, a few of the others will make sense.
The clocks all turn green at a specific time every day, and print out another clue.

[ninjaguyDan]

I'll just number your spoilers and tell you which ones will lead somewhere and which ones are a waste of time.

1 - The number does relate to an ending, but it's only part of what you need. The poster next to it will give you another part, when you find it.
2 - It is definitely related to an ending, but it's not the Fibonacci one.
3 - Only the planet is part of an ending, the other things are a waste of time. It might be part of the ending with that strange sequence...
4 - Well, when you find the key, you'll know where to put it.
5 - Did you try NOT pressing them?
6 - The clocks count real time, and are associated with one ending. The letters and numbers are a different ending.
7 - See 9.
8 - Only one tune; if you got it, you're done with that.
9 - See 2.

Overall, you are on the right track. A few of your spoilers are related to a long process in the same ending. I was intentionally vague about 7 and 9. :)

[F1ReB4LL]

3 - http://en.wikipedia.org/wiki/Ostap_Bender
9 - http://en.wikipedia.org/wiki/Fibonacci :)

[F1ReB4LL]

6 - have you ever played Battleship?

The clock part is tough to hint, but if it had all the arrows it should have - what would be the best moment to look there?

[Lucathegreat]

Thanks a lot for the hints, guys!
Oh, so the clocks are related to real time? Lame, always hated these things, will try to set the computer clock to 12 AM/PM to see what happens.

Ostap Bender really surprised me, never thought it'd be something real (what a name) nor did I ever heard of it, I assumed Bender related to the Futurama one, since you get his ending right there via morse pad :O So I assume the hint there is.. "twelve". And those strange symbols are supposed to be "chairs". Would've never guessed.

I believe the number sequence relates to the planets (with 0-23 having a sun near it), so I probably have to reach 9 (Pluto). Will think further into it.

Lol, and I totally didn't know his real name was actually Leonardo Pisano, I always knew him as Fibonacci, now I feel stupid. XD

[Lucathegreat]

Alright, I solved two more things:

The basic Fibonacci code was so obvious I didn't even try it, turned out it was the right answer to the 9-digits screen... :/ - Cthulhu ending done.

Would've never guessed that the D7 etc. referred to a Battleship grid. Solved it and got.. a diamond. That I still can't use anywhere. Daaamn!
btw, was there a "real" hint about the Battleship? D1, D4 and D7 were written, so ok, then I kinda tried at random with the Bx and x4, turned out it was B4 and F4 to make a cross/specular diagram on the grid.

EDIT: Clocks also done. It took me a while to understand the dotted paper it spitted out, since I noticed it was different every time. Now I have the second half of the poster, so... 4 -Green dot, 2 - Hi.

...not what I expected.

[ninjaguyDan]

Hmm, 4 green dot, 2 hi? You might be taking that hint too literal.

[Lucathegreat]

Lol, yeah, I got it eventually XD
I still had to check a couple hints in the walkthrough to get some of the rest, would've never found the hint at the end of the plane minigame on my own, and my mind refused to get the 0-23 solution, they put dots/half-deleted numbers below it to trick you into thinking it was some sequence (like Fibonacci) to complete, instead it wasn't. Very clever. The rest wasn't too hard, I already figured out most of it.

Thanks again to everyone! :)