World 1-4 (Super Mario Bros. 3)

Level 4
This level scrolls to the right pushing you along. There are moving platforms for you to jump on that also fall. If you can collect all the coins in this level and stop the timer on an even number you can turn the Hammer Bro into a ship full of coins. There are blocks with coins or 1-up mushrooms in them. The exit is into the pipe at the end.