If you see a file labeled 150in1_nes_rom_download_upd.zip , it is almost certainly a community-repackaged collection of pirated ROMs.

Usually just drag‑and‑drop the .nes file onto the emulator window or use the “File → Open” menu.

Running a 150-in-1 NES ROM is not always as simple as loading a standard, single-game ROM. The unique architecture of multicarts requires specific emulation handling. The Mapper Obstacle

Since the user mentioned "upd," maybe they're looking for updates or newer versions of such ROM packs. But the law still applies. Even if it's an update, distributing pirated ROMs is still illegal. I should emphasize the risks involved, like legal consequences, malware, and supporting piracy financially.