Is R&G are Dead now available on DVD?

Why do you ask?

Why would you want to play the question game?

Have you seen this: http://en.wikipedia.org/wiki/Questions_(game) ?

If you have a Playstation or an Xbox then you can download it from their networks.

In case you want to get away from your computer/tv and play an arcade version and see how was the game was improved over time, Pink Gorilla on the Ave has Crazy Taxi 3: High Roller.

http://www.facebook.com/PinkGorillaArcade?v=info
http://en.wikipedia.org/wiki/Crazy_Taxi_3:_High_Roller
http://en.wikipedia.org/wiki/Crazy_Taxi

You can always download a Dreamcast emulator and then search for a torrent of the original game. Be careful scanning those files with antivirus before opening them though. Here's a link to one of the dreamcast emulators. Not sure how well it works though, since I've never tried it.

http://www.emulator-zone.com/doc.php/dreamcast/chankast.html

Like Griffin said, online play is limited to people using the same platform. Games released on Mac and Windows are the one exception to this rule, but it doesn't sound like that applies in your case.

The console makers have a lot invested in keeping their machines relatively locked down, which is probably the big reason that there's no huge push to get cross-platform online play into a viable state. Both PSN and Xbox Live are services that actively encourage people like you to pick up a second gaming rig to be able to play with your friends, which in turn becomes a cash cow for Microsoft and Sony. By the same token, these services have a lot fewer problems with cheaters/hackers, because the open nature of the PC makes it all but impossible to prevent people from running programs alongside the game. Allowing people to play with their PC-gaming friends on Xbox Live would just introduce those problems to a network that currently doesn't have to deal with them.

Game servers aren't generally aren't shared, so you're out of luck. They never share cross platform, either (so no PS3 vs. 360). Part of it is porting, part of is is proprietary info on the part of the console makers.