Can you install Japanese characters on a cell-phone?

[*Laurelindo*]

Is there any way to download or install Japanese characters to your cell-phone?
I don't really want it for any practical use, I just like the writing system a lot and it would be nice to have it on the cell. :p

[Vyk]

If you have some sort of smartphone (Blackberry, etc.) or iPhone, then you can probably dig up an app somewhere. If its just a regular phone the likelihood is slim. Most regular phones don't run on any real kind of "software". They mostly just use whatever firmware they're given, which is a lot harder to make changes to, if its possible at all

Edit: I should append that this is merely from my understanding. I've done plenty of research on customizing a few cell phones, but I'm really not any kind of expert

[*Laurelindo*]

Alright, thanks.
I've got a Sony Ericsson G502, so I should be able to install it.