At the beginning of the second area, a string of Rammerheads are circling around a section of the level. Most of the Rammerheads are trailing a coin behind them, but one is trailing the second green ...

This 100% walkthrough video shows where to find every collectible in World Castle-6: Rammerhead Reef. For more information, visit our guide at https://www.ign.com/wikis/super-mario-3d-world ...