Gorillas is an artillery-style iOS game, based on the old Qbasic GORILLA.BAS.
These instructions will help you get it up and running on your system and device.
Gorillas depends only on Pearl. Indirectly (via Pearl) it depends on things such as cocos2d-iphone.
To get all the dependencies needed to build the code, or update them at a later time, a script was created to deal with the submodules easily. Just navigate to the Gorillas directory from a console and enter the following command:
./Scripts/updateDependencies
This should check out all the git-based submodule dependencies. Afterwards, open the Gorillas project and you should be good to go.
If you run into any trouble, feel free to get in touch with me. I'd be awesome if you could provide me with a detailed description of the errors you encounter and the things you've already tried to fix them. You can reach me at lhunath+removethis@lyndir.com
Good Luck!