You know on the front screens.. there is a picture of a character from the game in the bottom right.. and when you unlock a new character or alt. costume they get put in rotation to appear there too...
well I was saving to buy Noob - Smoke.. and as I finally got the money.. I was just going to goto the Krypt to buy them and there picture appeared on the title screen... which was weird... as usually you have to have the characters before they appear... has something like this happened to you?