I was thinking about how Characters are unlocked right now, and how they were before.
There was, if am not wrong, a 'monetary' system.
I thought of adding that 'monetary' system back in, so you may Purchase characters with those 'Yens' or better called, 'Kill Points'.

Why Kill Points? You may ask.
I've thought of giving Kill Points away by each KILL (Do not think of KO(s)), as a remote probability to be attained.

For example, you're Naruto, and you kill Itachi, then, you could get 1-5 Kill Points at a 20% chance.
Making it this way, NOT everyone will have the SAME characters, since they will be able to pick wether they want it or not. Also, Kill Points would not be so overgiven, since 20% chance is low enough to have the players working on them, and better if we made Characters in-between 50-200 Kill Points, expensive enough uh?

For example, Hiruzen Sarutobi, one of the strongest characters, could be 200 KP. Since you would have to actually work for it, and not just put a Comment on the HUB.
Another example is Kabutomaru, which seems to not be available neither for Admins, it could be, as it is the cheapest (If used in proper ways), to say... 250-300 Kill Points (a.k.a. KP(s)).

It would not be too much work, and I could do it in no time, like a day or two. I think it is a pretty nice way to unlock characters, and not having to be editing a file on the server. Also, I thought of using Topic() to send Character Unlocks between servers, so people would have them no matter what server they are on.

I also understand that the way it is now, is to encourage HUBs Comments as well as Fan-ers, but there are plenty more ways to encourage that, without having to affect the game directly. For example, special Events, such as In-Game Tournaments, or Out-of-game events that could go from retrieving Graphics, to System designing, or whatever we could think of.

I also posted this suggestion here to see what players have to say about it, and not just go around changing game's basis without even asking once.