Characters will start appearing similar to Tekken 3 (except at an accellerated rate). After 1 week of being on 8 hours per day, the first silhouette will appear (remember Tekken 3?). Once a silhouette appears, one week must pass (of the machine being on for 8 hours a day, as mentioned above) to release the first character. Once a new character is released, a new silhouette will appear, and it will take only one week between all remaining characters.
1) Kuma (2 weeks from initial boot up)
2) Anna
Release Miharu Outfit 1 and 2 (selectable with RP and RK)
3) Bruce
4) Ganryu
Release Eddie Gordo Outfit 1 and 2 (selectable with RP and RK)
5) Baek
6) Mokujin/TetsuJin
Release Violet Outfit 1 and 2 (selectable with RP and RK on Lee)
7) Wang
8) Godhand (yes, that Godhand. aka Ken Mishima)
9 ) True Heihachi
10) [ ? ] (question mark) - Random Select
* note: automatically available after True Heihachi
Law Outfit #3 (Bruce Lee Suit)
Anna Outfit #3 ("Pimp" Suit)
Panda Outfit 1 and 2 (selectable with RP and RK on Kuma)
* edit: these outfit options come after Hei is unlocked.
* edit: I also forgot to mention the Time Release Stages (the email was written in super fobspeak, so it was hard to get some of the info). Apparently there are three time release stages. Dojo, Shinjuku (outdoor street, obviously no barriers like in TK4), and "Hell" (which is apparently Heihachi's stage). These are released after Bruce, Mokujin, and Heihachi - respectively