In early 2021, a man from Nagoya, Japan was arrested after hacking and modifying Pokémon in his copy of the game and selling them to people. The Japanese police and The Pokémon Company felt this was in violation of the country's "Unfair Competition Prevention Act (UCPA)" and therefore illegal. The man was first brought to the police's attention after selling a modified Sobble for ¥4,400 (US$42), but he was eventually able to make ¥1.15 million (US$11,000) from various transactions before being arrested. It's suspected that the reason for trading these hacked Pokémon was due to the potential ability changes that hacking allowed which could provide easy advantages in the competitive scene without going through the time to catch them in-game.