A proper dump of this NSP (Title ID typically starts with 0100C9A00ECE6000 for the base app) contains:
The is the digital package for the Expansion Pack’s Genesis emulator. While the NSP file exists in modding circles, the intended use is via an official Nintendo Switch Online + Expansion Pack subscription downloaded directly from the eShop. SEGA Genesis - Nintendo Switch Online -NSP--US-...
The NSP version of the official app is best for casual play and save state convenience. However, RetroArch offers better input lag for competitive play (e.g., Street Fighter II: Special Champion Edition ). A proper dump of this NSP (Title ID