Original Nintendo 3DS game cartridges and digital eShop downloads use strict proprietary encryption. While an original 3DS console can read encrypted files natively, software emulators cannot. have had this security layer removed.
What are you planning to play this on (PC, Android, Steam Deck, or a modded 3DS)? Which emulator do you currently have installed? Aikatsu- My No.1 Stage- -Decrypted- 3DS -JPN- ROM
For the authentic handheld feel, install the decrypted ROM (converted to .cia) on a modded 3DS. Original Nintendo 3DS game cartridges and digital eShop
: Though the original project was discontinued, various community forks continue to offer excellent 3DS emulation with upscaling features. Aikatsu- My No.1 Stage- -Decrypted- 3DS -JPN- ROM