Secret Missions

[Dante's Stalker]

Hey guys!

So I'm at mission 13 or something now, and found another seal to a secret mission in an alley.
Only problem is for the love of cookies I could not align this sucker.
This is also only the second dang secret mission I've noticed.
My question is where are all the secret missions and are there any tips or tricks anyone can give to access them?

Any help is awesome.

(And at this point, if you don't want spoilers or whatnot, you should probably not be in this here thread.)

 

[berto]

and found another seal to a secret mission in an alley.

Is this the one with V?

Spoiler

You need to get the two egglings. One you get at the end of the bridge and the other you need to break the wall with the image of a madonna on the side of a building by summoning Nightmare and following the path that leads.

I've found 10 and beaten them all with a lot of patience for some and the right weapon for the others. All you need to do is to look out for red stains on the floor or wall. If you spot them look around that area for more. The rest of the pattern has to be in the same area. For V, most of the time you need to summon Nightmare. I haven't found 11 or 12 yet.