The "River King Mystic Valley" video game cartridge is designed for the Nintendo DS platform, with a rating of E for Everyone. Published by Nintendo, this action and adventure game offers a unique gaming experience in the sub-genre of boxing. Set in a mystical valley, players can immerse themselves in a thrilling river king adventure, solving puzzles and engaging in exciting gameplay. This NTSC-U/C (US/Canada) region coded game is perfect for fans of action-packed gaming experiences on the Nintendo DS platform.