Source:
https://www.smbxgame.com/forums/viewtopic.php?f=36&t=26683
Creator:
koopsultrakoops500
ReleaseDate:
2021-01-10
Files:
Download (Warning, 9.4 GB!)=Super Mario Bros. 4 - Trouble at Haylon Islands.7z
Soundtrack=Super Mario Bros. 4 Trouble At Haylon Island Sound Track Mega Collection.zip
Note:
The game was built with a lot of levels stolen from other authors without asking their permissions (Thanks to Sonya Sanchez for realinsing this fact), and therefore, original topic had been closed. The original download link is no longer available.

Description:
The Story

Bowser, Bowser Jr, Kamek, the Koopalings, and the other Bosses are causing more chaos in a new world called Haylon Island.

He and the rest of his minions have stolen 9 of the Talisman Gems, the Shine, The Millennium Star, Rosalina's Magic Wand and the 6 Element Orbs.

It's up to Mario and his friends to travel to the new world, restore it back, and save Haylon Island. The journey of stopping Bowser and his goons is full of dangers, such as fortresses and their bosses.

The entire Episode is long, you will need to find all 1000 stars to finish the game. Plus the game only has SNES Music!

Worlds and Bosses:

W1 - The Mushroom Kingdom (Bowser)

W2 - The Golden Mushroom Desert (Iggy Koopa)

W3 - Mario Land Amusement Park (Wart)

W4 - Broccoli Vine Forest (Lemmy Koopa)

W5 - Krimson Magma Stone Candy Mines (Roy Koopa)

W6 - Ghost Town Gulch (Kamek Koopa)

W7 - The Grand Toadlantic Bay Ocean (Larry Koopa)

W8 - Jumbo Gumbo Jungle (Army Hammer Bro)

W9 - Snow Cone Glacier (Wendy O. Koopa)

W10 - Cookie Cliffside Mountain (Morton Koopa Jr.)

W11 - Marshmallow Meringue Clouds (Ludwig von Koopa)

W12 - Koopa Kingdom (Dry Bowser/Bowser Jr.)

WA - Mario's Mushroom City (Robo Birdo)

WB - Leaf Canyon (King Boo)

WC - Toadlantis Ocean Beach (Barba)

WD - Dimension M&L (Dark Link/Waid)

Rosalina's Star Palace - Sakura World (Ganondorf)

Star World - Star Road (Metal Bowser)

Special World - Star Space Galaxy (Weegie/Smithy)

World Bowser - Bowser's Castle (Super Bowser)

E Reader - World Lost Level Island (Nightmare N.M.E.)

Castle/Tower/Stronghold - Castle/Tower of Hearle/Stronghold Star (???)