
Users report that the site is heavily cluttered with malicious ads and misleading "Download" buttons. You must use a robust ad-blocker like uBlock Origin to avoid malware redirects.
The ".rar" extension is standard for these downloads. Ensure that after extraction, the resulting file is a .cia or .3ds file. Never run an .exe file from a ROM site. DLC Technical Details NSMB2-USA-(DLC)-Decrypted-Ziperto.rar
However, the safety of the download process depends heavily on your setup: Safety & Reputation Users report that the site is heavily cluttered