I think, after playing it for a fair few hours, there
is a criticism that comes to mind - but I'm not entirely sure it's something that necessarily ought to be fixed.
When I solve a Slitherlink puzzle (as an example of a similar sort of puzzle), I'm working on the entire grid at once and piecing together information as I go; there must be a line between these two squares, you know there won't be a line here because that'll block off this area - and so, through reiterating the rules, I'll have a patchwork of information that leads to more information and - ultimately - the solution.
There's some puzzle types in TW that could be approached in a similar way. One of the first puzzle types introduced, the
, for instance; they lend themselves towards forming a patchwork of information that you
know is true and allowing you to deduce how the rest of the line works from that. Which is all well and good - except the
interface doesn't really give you any tools to work like that. There's no scope for marking arbitrary lines that you know are correct; instead, you
always have to work in terms of drawing a line from the start to the finish, which is not
as useful a tool for solving the puzzle. Hence, in turn, requiring a shift to paper if you're going to solve a puzzle that way, when the tools to do so
could be supplied in the game.
In short: The interface with the game is
just a tool to input answers, not a tool to aid solving the puzzles.
That's the argument for. Now the argument against:
There's an elegance to the interface. It's simple, and it's consistent. You don't need much instruction on how to use it - that's basically covered by that very first corridor area - and when you
know how to use it, you can use it everywhere you need to without any extra tutorials or explanations.
I think the latter trumps the former, in the end. It's no
great hassle shifting to paper - but then, I'm the sort of person who keeps grid paper and note paper to hand (I don't think I've used it since Fez!), and the advantages of the elegance of the interface are pretty huge.