1. It uses the famicom disk system
2. since it uses famicom disks, those disks are non standard format and cannot be downloaded to a computer
3. famicom disk system is very fragile-- the number one problem with it is the drive belt breaks
4. even if you have a working gamedoctor setup, game compatibility is terrible.
better off getting a dr pc jr from game choice club or something because it is a famicom/copier in one system and plays the majority of all usa/jap games.