It looks like you're looking for a guide related to (the Nintendo Switch version), specifically the US NSP file.
Hatsune Miku: Project DIVA Mega Mix is more than just a port; it is a definitive compilation optimized for the modern era. By balancing the hardcore precision of traditional button-mapping with the accessibility of motion controls, Sega created a product that appeals to a wide demographic. While the DLC structure and the exclusion of some legacy tracks are minor drawbacks, the game succeeds brilliantly in its mission: to provide a polished, visually stunning, and musically diverse tribute to the world’s most famous digital pop star. For both the rhythm game enthusiast and the curious observer, Mega Mix is an essential addition to the Nintendo Switch library. Hatsune Miku Project DIVA Mega Mix -NSP--US--Up...
: Over 100 songs in the base Switch version, and up to 250 songs in the PC Mega Mix+ VIP Bundle . Play Styles : Arcade Mode : The classic button-tapping gameplay. It looks like you're looking for a guide