Yes the n64 can but to play Japanese games on the system is to get rid of the plastic tabs in the cart slot because that stop Japanese games from going in.
No.
Yes Goeman games work on the N64 for American Systems. To make sure you have the correct cartridge, look on the back of games for NAL - this means North American and will work for your N64. However PAL and JPN will not work unless you have that specific game system.
Japanese N64 games are different than North American games, the cartridge design at the bottom of the game is different between the two, so you need a Japanese N64 to play Japanese games. The only modification I would suggest is taking a Japanese game reader and replacing it with your existing one. But if you can find a Japanese N64 than just stick with that. .j.
Yes
Yes, both are PAL format.
You can do a search for "n64 online" & find some game that are very similar to those Nintendo games. However, to play those game you will need to download an N64 Emulator graphics plugin for it to work properly.
Not directly, but some N64 games are available through Virtual Console.
There are 387 published games for the N64. Some of the games were country exclusive.
No a N64 keyboard does not exist. You can play N64 games online using an emulator which you then use a keyboard to control, but there is no attachment keyboard for the N64 system. .j.
swapmeets
it has about 380 games
yes