World 3-3 (Super Mario Bros. 3)
From the Super Mario Wiki
The level starts in a somewhat large platform, as the tide rises and lowers and a Boss Bass chases the player. Shortly after this, there is a Koopa Troopa and a line of Brick Blocks, with also some Hard Blocks and a Note Block that contains a power-up. One Brick Block also contains a P-Switch. Next are some gaps followed by a Rotary Lift, two more Brick Blocks containing a power-up and a P-Switch, and two Ice Blocks. After that, there are several coins which will serve as platforms if the player pressed the P-Switch. Otherwise, there are some Brick Blocks above them alongside another Rotary Lift. There will be jumping Cheep-Cheeps in the process.