It was something of a 2D Shadow of the Colossus in that there are only puzzle-like bosses in the game and you have to walk a long way through a mostly empty environment to get to each one. Where it differs from SotC is that your character dies from a single blow and you have to walk all the way back to the boss, so the environments get old pretty fast. That's supposed to be the Dark Souls-y part, but the constant dying was interesting in Dark Souls because you lost your souls when you died and could try to get them back, which encouraged caution and made things more tense. It doesn't really do anything like that in Titan Souls, though, because you're not really punished for dying (there were no powerups of exp or anything, so there's nothing to take away) and the boss battles are pretty twitchy affairs anyway, so there's not much tension there. All in all it's just a puzzle action game in which you spend a lot of time walking to the puzzles. The music was fairly nice, though.