Download only from project64.com (the official site). Many fake "Project64 download" sites bundle adware. During installation, uncheck "Install Bonjour" or any "optional offers."
Characters are replaced with crude, hand-drawn 2D versions of the original cast (Mayro, Binyot, and others). Supra Mayro 64 Download No Virus
Let’s be real: Downloading the patch is legal gray area. Downloading a pre-patched ROM is copyright infringement. I’m not Nintendo’s lawyer, but I am a fan of this website not getting sued. So I’ll say this: Download only from project64