> Sadly you can't use your original NES carts with the console - something even the most basic "Famiclone" offers - and there doesn't seem to be any means of getting new games onto it. Would it really have been that much extra effort to make the console backwards compatible?
Depends if it's a NES on a chip type system like most clones, or if it's something like an ARM SoC device running an emulator[1]. If it's the former it would be possible with just space issues for the slot, the latter would be quite hard, certainly more trouble than worth for a cheap novelty device.
[1] It uses Wii controllers and has save states so it seems a bit more than the average clone at least.