About 4-5 hours ago i finished Shadow Complex on insane, with 100% and managed to clock in at 5 hours.  
I found the gameplay highly addictive and story interesting without getting me too involved. 
It's rich environments and good music makes it a game to buy even just for the experience, even though the graphics aren't that great.
It seems the game only really suffers in the technical department, because every flaw i can think of is of is either a bug or a poorly accomplished feature.
I'll give you some examples.  

This was my second time through. I managed to bug the game into making me finish it without the hookshot the first time. (Everyone who has played the game knows that you really can't do that.) 
For some reason the door to the room where you get the double jump was open, and I got over the large pit with my foam gun. 

I've been thinking about getting Shadow Complex for a while now, and your blog is yet another little push in the BUY ME NOW direction. Even with the problems mentioned, I'll probably enjoy the game. Hope they fix the problems before I have the chance to buy it, however. :)

I agree there are quite a few bugs but I have not experienced anything game-breaking. I would like to say you do not need to get the grappling hook to complete the game, there is a master challenge where you can only complete the game with 4% of the items.

Yea I ran across the whole purple/ white head thing at the end, really bummed me out considering I had no other real graphical bugs like that in the game; however i did run into some weird bugs where the controls didn't work, or I fell through the floor, suspended in mid-air.  But I still really enjoyed the game, perfectly scratches that Metroidvania itch most fans of those series get.

I've only clocked in two hours playing this game, and haven't noticed any major problems. Some of the characters look a little goofy, and aiming at enemies in the third dimension of the screen sometimes feels wonky, but otherwise so far its great.

Yeah. Love the game. Avoiding leaderboards like the plague. It's a consistant total lock-up if I try to look at friends' scores. I assume it will get patched at some pooint, and until then I'll just keep blasting guys in the face, punching dudes, and kicking bombas.

Huh? You don't NEED the Grapple Hook at all... just the Foam Gun... 
 
Also, I had no bugs on all three of my run throughs of the game. And I got my S-Rank as well, no problems. Lucky, I guess?

" Huh? You don't NEED the Grapple Hook at all... just the Foam Gun... "

It is an Epic game so the bugs and glitches come standard. ;)  It really is a great game though.

I finished my first playthrough a couple hours ago, and when I loaded the game up, it downloaded an update. Hopefully that'll fix some of the problems you experienced.
 
God damn this game is awesome though! (everything but the bosses, that is) I think I'm going to review it after I play it on one of the harder difficulty settings.

"This was my second time through. I managed to bug the game into making me finish it without the hookshot the first time. (Everyone who has played the game knows that you really can't do that.)"

I didn't find many bugs with the game other than Claire's mouth just... doesn't move right at all!

" I didn't find many bugs with the game other than Claire's mouth just... doesn't move right at all! "

" @FlamingHobo said:

" I didn't find many bugs with the game other than Claire's mouth just... doesn't move right at all! "

thats because her boyfriend is huge ... ^_^ "

Only issues I had were with the hand to hand - enemies would constantly clip through the scenery and sometimes Jason would be shadow boxing the air in front of him instead of an enemy.

Also, sometimes the camera doesn't shift when you're trying to jump up into an air vent and so Jason refuses to grab it.

And sometimes he won't shoot enemies in the fore/back-ground.

And there are 2 points of no return item-wise (really annoying if you're trying to 100% it on your first run through).

... Ok, so it's got a fair few issues. Still awesome though

No bugs for the entire game until, in the ending cinematic, all the textures disappear form Jasons head, 

I don't think I used the hookshot for anything other then hidden items. I didn't use it to beat the actual story.

The leaderboards are really freaking out, and show different numbers every time, not to mention crashing my box a few times. Otherwise a great game, though.

I never experienced any bugs. If you friction damper your way through a ton of rooms it's going to chug but bear in mind the game has to stream in textures since it never stops to load. The texture pop-in is an issue with Unreal Engine 3, seen in many other games. 
 
I think you're hypercritical. You say the game is great and then bitch about it as if it's the worst game you ever played.
 
Edit: cut out the bit you already knew.
 
Oh yeah and something perhaps you guys can help me with. My last passkey component is on the other side of the final boss battle (far right of the map). If I activate this battle I can't get across the other side of the lake without getting nuked. I can't go under the lake through the far right section of the map anymore because a huge stone wall has appeared in the elevator shaft that blocks that section off.
 
I've got all the gold bars, so I can restart the game from the secret room. My question is: do my passkey components and other pickups carry over if I do this?

"

And there are 2 points of no return item-wise (really annoying if you're trying to 100% it on your first run through).

"

I don't have a problem with bugs as much as the archaic shooting. I think I have gotten better but lining up headshots still really comes by luck for me. Leaderboards do suck, though. Mine hasn't updated at all recently. 

" I think you're hypercritical. You say the game is great and then bitch about it as if it's the worst game you ever played. " 

I finished my first playthrough on insane. After I got the missiles, I went straight to the final boss trigger, then went and beat it. I didn't even know about the extra parts of the suit... I just double jumped and foamed everywhere. I was about to go back for 100%, but found out that the Inertial Element was lost forever after the explosion. I'm almost at 100% now on my second playthrough, after which I plan to go back through with almost nothing. Sure, the game has some problems (leaderboards, mainly, for me) but $15 is a steal. If you don't own it, at least try the demo.

" I finished my first playthrough on insane. After I got the missiles, I went straight to the final boss trigger, then went and beat it. I didn't even know about the extra parts of the suit... I just double jumped and foamed everywhere. I was about to go back for 100%, but found out that the Inertial Element was lost forever after the explosion. I'm almost at 100% now on my second playthrough, after which I plan to go back through with almost nothing. Sure, the game has some problems (leaderboards, mainly, for me) but $15 is a steal. If you don't own it, at least try the demo. "

" @Insectecutor: only the gun room. and i'm not  hypercritical, i'm just sad that the game has so many flaws. dude I payed for it! i have the right to be pissed about it.  "