I did it in one sitting in around 1:30 hours and 3000 clicks, so I didn't get any bugs by saving and loading. Just the giraffe's neck sometimes spinning in the opposite direction but then stopping at the correct angle.
Thanks for this game. It had me hooked the whole time, with the visuals, the sound, the puzzles, and simply the aesthetics of it all. Probably the best escape game I've played.