If the Krypt is empty, you're done. There is nothing more. It was the same on MKDA. Don't stress about it.

Hmmm. I completed the game ages ago, but have only just noticed my Kontent being uncomplete.
I'm sure what you say is true; that if the Krypt is empty, you have 100% completion. However, it still strikes me odd that there would be so many spaces left in Kontent if the game is complete.
I think it's safe to assume that it's a ploy by the developers to keep you playing longer, rarther than a hint that there are super unlockables still waiting in some hidden Krypt.

Theres a Mystery Koffin (I forgot how to get it.) Its like WQ or something like that. I dont know how to open it. I thought if I went back and did EVERYTHING in Konquest mode It would be openable, but NO luck. I got 4 Mysterious Keys, and a Ninja star that I cant figure out what to do with. Anybody know?

Yea stick it up your ass.

Now now Bombs - Play nicely!

Ok dude seriously, dont mention koffin WQ anywhere on The Deception Boards, simply cause it does not exist, no one has succeeded in porducing a photo or a small video of them opening such a hidden treasure. You know why?!?!??!!!? because it does not exist. Also talking about it will just get you flammed and hated by others that are furious and dissappointed with MKD. Im not against you or nothing just trying to help. Now repeat it to yourself 100 times, forwards and backwards in three languages. "Koffin WQ Does Not Exist, I will not waste any more time on it" Mr eyebrows has stated himself on more than one occasion that there is nothing left to unlock for Mortal Kombat Decption For Ps2, Xbox, and or Nintendo Gamecube. May not be the mans exact words but you get the point. Koffin WQ does not e x i s t !!

ok that is weird u shud have unlocked everything so what I dont get is why it is not full

I wasnt trying to pull any BS. I did really see it one time. I think its just a glitch though. And Yes I seriously did play through the game again in an attempt to open it.

the kontent page is not full because those empty boxes don't need to be filled in. For example... to make things easier... say theres 20 things in the kontent section... and only 8 boxes per screen. Therefore the last page would only show 4 boxes with the other 4 being emptied. This happend in MKDA... and even in MKSM (video section).
the WQ koffin... somewhat exists. I've seen it... all you gotta do is go to the krypt then scroll all the way to the top or bottom real fast. All the koffins will read WQ as opposed to what they really are. Thats just it tho... nothing more. Nothing to unlock... no mystery koffin. Midway was asked this at fight night and they had no clue what we were talking about.

Told yall I saw a WQ Koffin.

I got a key from a dead body in my first arrival in the Nerther Realm......
it's still there ,maybe it is the key to something ........