Help With Secrets?

[Trashbag]

I'm trying to put together an All Secrets playthrough for Kvark, but I haven't found any resources that list them all out. I'm gonna scour the levels one-by-one, but I wouldn't mind help listing them out. If anyone's found all the secrets in a level, by all means - list them out here.

[Trashbag]

I haven't figured out any of the passcode doors (except the obvious "1234" one), but I also wasn't REALLY trying to crack them. I'll see how I do this run.

[Trashbag]

I'm already having trouble in the first level.

I've gotten the AK hidden in the far cell at the start, the hidden alcove with the concrete armor shortly after, and the 1234 door code, but I can't figure out the 4th.

I have a suspicion that it might involve jumping the railing on the 2nd floor of the same cells I was in - on account of the lowered wall on the other side, but I'm not convinced I can make the jump, and I don't see any open cells on the other side.

[Cahalith]

One of the earlier code doors (I think it's the second one you can find after the 1234 one) can be opened with the classic 0451.

[Trashbag]

Originally posted by Cahalith:

One of the earlier code doors (I think it's the second one you can find after the 1234 one) can be opened with the classic 0451.

Oh, thanks!

I had a sneaking suspicion there'd be one of those, but I wasn't sure which one it might be.