You can still play the old titles legally - just get a copy of the original cartridge. Ideally, though - for absolutely-true-legal (pinky shake) - you'd have t

You can still play the old titles legally - just get a copy of the original cartridge. Ideally, though - for absolutely-true-legal (pinky shake) - you'd have to build a device to read out the ROM from that cartridge, store it, then play that copy (and only that copy). Essentially - all of this boils down to it being legal to make a backup of the software media that you own. Then again, DVDs and CSS changed some of that, so...I dunno.