Done, amazing, loved every minute of the 2 hours and 30 minutes it took me to finish it. Well worth the 1200 points it cost.
 
I do have one question though. Those little glowy orb things; I picked up a couple and each time I did I was awarded with an achievement. However, one little glowy orb:
 

i dunno, there's another orb that gives no achievement in the cog section. i think they probably contribute to your completion rate in the leaderboard?

also got that orb (after a looong stretch of failure)  thinking it was the ' Going Up' achievement but it wasn't. I thought it was a bug and the achievement didn't trigger but you unlock that one later in the game. 
So as   delicious_lie thinks, it must be related to the completion % of the game

Turns out it is just related to your % completion, the non-achievement based orbs seem to add 1%. (Edit: thanks Timing) I think 105% is max according to the leaderboards.

Right now the number 1 guy on the leaderboards has 105% completion.
 
Makes me wonder what the actual total completion percentage is, and how long it'll take before someone has it. I predict about... 4 days.

" @JessicaBoo: If anyone's having trouble with any of the puzzles I'm happy to try and help with a text based solution. "

Im stuck at the same spot you were Jessicaboo. I cant figure out how to get that egg in the top corner where you need to hit the gravity switch and ride the box. Been trying at all angles. Not even sure IF i need to ride the box lol. UGh anyone help?

I'm at 72% where there are gravity switches and a thing on a wire with a rope, you need to switch gravity upwards to get the thing to your side of the chasm and switch it again to ride it down, haven't got a clue how to do it. Any help would be appreciated.
 
EDIT: Got it, nevermind.

@ medina09 I was doing the same thing for about 30 mins last night!  Grabbing onto the side of that box as I hit the switch spinning and spinning and spinning it!  I was so frustrated!