Download of nogravity 2.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is realtech VR.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This program was developed to work on Mac OS X 10.7 or later. The most popular versions of the software are 2.2 and 1.4. The application is categorized as Games.
From the developer:
Are you brave enough to play No Gravity? You’ll need steady nerves and a strong heart to fly around dangerous obstacles, face hostile environments and use deadly weapons to accomplish your missions and protect your people. Hurry, download this HD version of the PSP favorite, before it’s too late.
UPDATED FOR OSX MOUNTAIN LION, RETINA DISPLAY, AND GAME CENTER. LIMITED OFFER! FREE UNTIL 09/12
"The final game (...
You may want to check out more software for Mac, such as Android, Mad Skills Motocross or ActionSwing, which might be similar to nogravity.