I could write an essay, a long one, on the genius of this game's concept and the intricacy of its execution, but it's Friday afternoon, and I like think I have better things to do. (I like to lie to myself, in other words.) For now, suffice it to say that the Hard puzzles are among the best I've played in any game, and that while a few Round 2 QOL enhancements would've been welcome here (especially the bomb and reworked "completed line" indicator), the lack of a hint system improves this one to such a startling degree that I'm tempted to do a full "hintless" replay of the sequel. Oh, and I guess I do wish the really incredible stuff was unlocked from the start, but the easier puzzles have a zen charm of their own. HAL should have made 10 of these.