A new LEGO Game Boy upgrade kit has been released, which can play cartridges. However, reports about the kit's functionality and purpose are inconsistent, with some outlets suggesting it plays real cartridges, while another implies it may only play Pokémon music. The kit's features and compatibility are not entirely clear, with some outlets focusing on its technical aspects, such as the use of floating magnets, and others mentioning it in the context of gift ideas or separate DIY projects.