So far the only quest I've managed to complete was the one that opens the underground passage, and that was only because the note in the paper cabin looked similar to the shape of the number-ball thing, and even then there weren't any clear instructions on what I was even supposed to be aiming for[fortunately I was really bored and had time to figure it out through trial and error]. There's a hundred things I can click that allow you to "speak a phrase" that it says is given by an NPC, but so far I haven't even FOUND an NPC, just items and signs. Are those supposed to contain these phrases? Are signs the only NPCs in the game?
Also, I'm sure some of these items will become useful later in the game[as some already have] but is there anyway to tell when other than just constantly clicking the same things again and again? Is there any sort of online list describing at least general quests and puzzles for each level/age? I'm sorry for so many questions, and I have no objection to solving puzzles on my own or anything, but I'm finding it pretty frustrating that there's very little in-game info even hinting at what is an isn't a puzzle, or at which puzzles are currently available to me so that I don't keep wasting my time trying to get at things I'm at the wrong level for.
Thank you all for reading this, and like I said, I don't want anyone to give me any secrets that I should earn on my own, but it would just make playing the game so much more enjoyable if I had a better idea of what I'm supposed to be doing in it[other than killing people, that is, which is always fun>:-D]. I'm MP3, by the way, and have finished the story as far as I can go until my hundredth kill.