No
Chat with our AI personalities
No.
If you are referring to an emulator that that runs N64 roms just go to www.pj64-emu.com For the super Mario 64 ROM go to www.emuparadise.org.
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.
No you don't emulators usually save game progress and settings within their software environment
No a PS2 will not play Nintendo 64 games