Intestinvaders 1.0.4 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The software belongs to Games. This free software for Mac OS X was originally designed by Python.
From the developer:
Intestinvaders is a OS X game in which, in humanity's utopian future, the ultimate form of sporting entertainment consists of racing miniaturised spaceships through the intestines of people from the past - in this case, the various Presidents of the USA.
You may want to check out more Mac applications, such as Dream Cars, XRC or X Speed Race, which might be similar to Intestinvaders.