Pixel Press is an iPhone and iPad app that lets anyone design their own video game, without having to know any coding.
You simply draw your level on a sheet of paper, take a picture of it with the camera feature in the Pixel press app, test it and then share it so anyone can play. It has a very Mario-like style theme to the levels which is definitely a good thing.
The aim here by Pixel Press is to give literally anyone the ability to create their own level. They want to foster creativity, getting users to create the best levels they can.