You could have downloaded nfsHelicopterHeight 4.4.4.380 for Mac from our software library for free. The application is categorized as Theming Tools. This free Mac app was originally developed by newfreescreensavers.
From the developer:
Slide-show, animated and 3D screensavers that will decorate your monitor with beautiful moving images. nfsHelicopterHeight is a free video-based screensaver that creates the feeling of flight on a helicopter. The sound can be muted.
Within the installation, ads will be shown offering other interesting programs. You can add them or decline.
You may want to check out more Mac applications, such as scarytime v9, Christmas Tree Creator '04 or DesktopEarth 3D, which might be related to nfsHelicopterHeight.