Did you know there was a Japanese Nintendo 64 that played discs instead of cartridges? It was called the Nintendo 64DD  — and it only released in Japan in 1999! Instead of cartridges like the regular Nintendo 64 , the 64DD used special magnetic disks. It plugged into the bottom of the N64 and allowed: • Rewritable storage • Expanded game content • Online features (yes — online in 1999!) • Game creation tools It even had an online service called Randnet  where players could co