As long as there have been robots, there have been attempts to create robot pets. A dog you don't need to feed, walk, or pick up after? Sign us up!

Come on. This Digimon Device fits the mold of most models, a cute and sometimes anime-accurate rectangular design perfect to add to your key-ring. Essentially a Tamagotchi with a Digimon spin ...

And there's also Digimon virtual pets - another 1990s throwback - though these are also owned by Bandai Namco, and were originally designed as Tamagotchi for boys. Despite those gender-based lines ...

The original Tamagotchi proved to be very popular in both its native Japan and abroad, spawning spin-offs like Digimon and continuing to this day. There have even been video game-branded ...