|World 3 Seaside Beach (NSFMBTAR)|
|Appearance||New Super Flash Mario Bros. The Adventure Returns|
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The tropical world is based on World 3 from New Super Mario Bros. with Sparkling Waters background from New Super Mario Bros. U with only one rainbow. It also includes only one jungle level which is the second level that is called World 3-2 Tropical Lake Jungle.
World 3-A Huckit Crab Beach
A first secret and beach level with many Huckit Crabs.
World 3-1 Cheep Cheep Ocean
World 3-2 Tropical Lake Jungle
A second and tropical jungle level in first section similar to World 3-3 in Super Mario Bros., and two level sections based on both levels, World 3-2 and World 3-3 in Super Mario Bros. 3 with Hoopsters, and Porcu-Puffers.
World 3-Tower Wendy's Watery Tower
World 3-3 Blooper Ocean
World 3-House Watery Ghost House
A ghost house level with many Boos.
World 3-B Koopa Pirate Ship
A second secret and pirate ship level with many green and red Koopa Troopas.