closed as too broad by Sander Mangel♦, Keyul Shah, Fabian Schmengler, Rajeev K Tomy, Mufaddal Nov 11 '14 at 9:14
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Why can't you do it? Magento like any other website uses HTML, CSS and jQuery. It is no different. You can easily implement parallax effect in Magento. Infact there are hundreds of website built in Magento which uses Parallax.