Adding hidden characters

[Good_Wall533]

I've been wanting to put hidden characters in my roster for a while now. The screenpack i'm using for those who wants to know is Oldgamer's M.I.C.A Final Version Edition 1.1 with the 1662 slots Addon Patch. Can someone give me the basics on how to do it?

[Odb718]

http://mugenguild.com/forum/msg.2005248

See if this gets you anywhere.
Remember to make a back up before trying stuff like this.