Killer 7 is such an odd game. I finished it, but really can't say anything about what actually happened. Lithium's posts seem like good story breakdowns... I've only skimmed them though, since I'd like to play again and try to figure out at least some of the details myself.
Some general comments:
-- Tough game to get into, but once you understand the controls it moves smoothly for the most part and becomes much more enjoyable. Shame you have to suffer through the first level (maybe more) before reaching that comfort level.
-- A few of the puzzles seemed very abstract, to the point that they are annoying. During my play through there were two or maybe three GameFAQ consultations so that I could move on without wasting time - something I'm usually loath to do.
-- Loved the style and general wackiness. Is it too morbid to say I loved collecting and spending blood for upgrades?
-- Combat feels tacked on. Odd aiming, inability to move, invisible enemies, forcing players to react and target critical hits... at times it feels like story (and style) was put before gameplay, and combat/movement controls were tacked on to justify the story.
-- This really should have been on Wii. Aiming would be more intuitive, the on-rails movement wouldn't feel so out of place, and I bet you could fit the whole thing on a single disc.
Did anyone try the modes that are unlocked after beating the game?