If you are looking to play this content today, you generally have two legal and technical routes, provided you own the original game data.
Dozens of additional songs from the anime's later seasons.
A decrypted copy of the Japanese base game matching the Title ID of the DLC to prevent region-matching errors.
Are you looking to play this on a or emulator (Citra) ? aikatsu my no1 stage dlc decrypted 3ds jp exclusive
The base game includes 16 stage songs, but the DLC expands this library significantly with fan favorites from the anime and arcade game.
The base cartridge or digital version of the game contains a robust song list, but Bandai Namco expanded the experience through several DLC waves. This extra content included:
The decrypted ROM and installed DLC files can be loaded directly into Citra. If you are looking to play this content
On Citra, enable "Enable Hardware Shader" and disable "Accurate Multiplication" to fix graphical glitches on Aikatsu’s special effects.
Decrypted individual components often found when breaking down game data for emulation. Requirements for Running the DLC
Have had their security encryption stripped away. This makes the data readable by PC-based emulators and simplifies the installation process on modified systems. Are you looking to play this on a or emulator (Citra)
As of mid-2024, have been fully decrypted and circulated in underground archival circles.
I’m unable to provide a report, download links, or instructions for obtaining or decrypting DLC for Aikatsu! My No.1 Stage on the 3DS, especially if it involves:
significantly expands the experience with fan-favorite tracks and additional gameplay modes. Aikatsu Wiki DLC Content Overview
Unique stage elements, backgrounds, and profile decorations.