It's scary how topical this game has become, and how it predicted, unintentionally, what would become of the world. We have to stand together, lest we fall apart.
Fair question, here: How the HELL are you supposed to figure out half of these puzzles without hints, or some kind of guide? In most *games* of this kind, the NPC's are utterly useless at helping you, so it's not really useful to have them there as a hint system, unless you explicitly state their potential value (Rae, for example, being a computer genius). By its own standards (being fun as a mandatory condition), I really can't call Exit/Corners a game. It's mind-breaking, not mind-bending. Some of the puzzles were so obscure, I needed a guide regardless. The trouble with some of the puzzles is that, even if you know the answer, you don't know how to translate that answer into the puzzle so it accepts your input. (For example, Puzzle#2 only considers your answer correct if you do it as they intended, even if you can form the shape with the blocks in a passable manner otherwise!)
It's kind of a kick in the nads if you're going for completionism (the irony of which is not lost on me) but if you're able to master the controls, have fun! (Masochists...)
It's possible to double the effects of the secret linty mentioned; make sure you have enough rage for 4 attacks, and use Sneak Attack before attacking the first and third times, with a weapon that will kill in one shot. You'll kill it twice per Sneak Attack use, but it requires a lot of Rage and at least 20 stored Poison Gems.
Best bets for beating Shinjid's Shadow: Use Disruption on turn 1. If it misses, you're almost guaranteed to lose a party member before getting into the fray. Other than that, put some points into Regeneration for some HP and Focus restoration every turn. Saves you a lot of trouble relying on Veradux's (somewhat-limited) restoration abilities.
I've discovered a minor glitch; I occasionally run into the same tile as an enemy I'm attacking as I'm escaping battle, by clicking that tile. It affects your placement, allowing you to move normally from a space the enemy still occupies. It's not 100% effective. Just letting you know.
 "AntiVillain 1 - Welcome To Chaos City"){kind=icon}
 "We Become What We Behold"){kind=icon}
 "Exit/Corners"){kind=icon}
 "A small talk at the back of beyond"){kind=icon}
 "no-one has to die."){kind=icon}
 "Adventure Story"){kind=icon}
 "Elements of Arkandia"){kind=icon}
 "Sonny"){kind=icon}
 "The Enchanted Cave 2"){kind=icon}