Okay, I know it's possible to play ROMs on the Wii Virtual Console, and I know that it's possible to rewrite code on cartridge games.  However, unlike Paul B. Davis, I'd like to avoid cutting up a cartridge just to modify it. 

In particular, as soon as a translation patch is made for it, I'd like to write one to a cartridge copy of Getter Love!! (a Japan-only Nintendo 64 game).  It would be nice to own that game in my subcollection of N64 games, and even though some dialogue is easy enough to figure out, having to decipher other dialogue (such as communicating with the girls is a good way to ruin any fun that can be had with it.  Therefore, I'd like to use one of the following methods to hack a cartridge copy:

1. Use some kind of special hardware to connect the console to the hard drive containing a translation patch (if any such hardware exists), or

2. Undo the screws, figure out which chips inside the game pak contain what data, modify the data as desired, and put the game pak back together.  (Game paks are bound by specially-designed screws, just like the consoles, and I don't know if it's possible to obtain the screwdriver that's required to undo them.)

I already looked around online, and I can't find any instructions on either method.  But if it's possible to clone the data of any game onto the internet, then it should be possible to write data from a computer onto a cartridge.  Can anyone give me some clues here?  I'd appreciate that.