Barclaycard new Rollercoaster iPhone App has been a tremendous success in the App Store, after realising the tricky funny Spinning Streaks App, Barclay’s is inspired to set a new standard of FREE Apps with Rollercoaster Extreme, set in on one of the most beautiful metropolitan city’s in the world New York, your will be ridding through skyscrapers in 3D and collecting points through all the course while avoiding bad targets. Waterslide Extreme another barclays App was downloaded over 12 million times. The game is iPhone 4 ready and is available on the App Store today. You can see a demo of the fun game in the video below.