Welcome to SMW Central!
SMW Central is the largest ROM hacking community on the internet, and the gathering place for all the resources you need to create your own ROM hack. We offer a large selection of completed hacks as well, ready for you to play! Traditionally SMW Central focuses on hacking Super Mario World, but over the years we've collected a ton of resources and hacks involving other games, too. Our community is ever-growing — sign up now and be part of it!
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Recent News
OLDC4 Results!
The moment you've been waiting decades for is here! OLDC4 Results have arrived and are ready for your viewing!
OLDC 4 Results
15 Years of The SMWCentral Music Tourney!!
It's time once again to listen to some banging tunes as nominated by our community!! This year the prize will be free tickets to Nintendo World in Orlando, Florida!! Wow!!!!!
Click here to find out I was lying about the prize, but also to go nominate three of your favorite songs. Remember, the deadline is Saturday, 5/24, 4:00 PM EST!
Overworld Design Contest 2025
It's time for the 2025 Overworld Design Contest! Let's see all those fun and unique worlds!
Be sure to check out the Rules & Submissions thread to get started!
Latest Content
Mario Goes To The Store
This is a hack vaguely inspired by Nonsense and by the completely insane stories that game mods usually come up with to justify the plot.
It features a lot of custom sprites & blocks (thanks to the… (read more…)
Rayman
Rayman...But in SMW Hell Yeah >:). Made by me and just me :D.
The Zip File includes:
GFX32 (Player)
GFX28 (Name)
GFX10 (Overworld Player)
GFX00 (Some Player Tiles)
SMW_Shared.pal (The character… (read more…)
Super Tetris - Title (Music 1)
Requested by Win72010.A pseudo MS-DOS styled port of title theme from SUPER TETЯIS. Try to find a good use for this aside from title screens or cutscenes.
Adventure Island - Coyote
A coyote from Adventure Island. A flower is spawned in its place, and if player goes far enough past it, Coyote will spawn and try to catch up to the player. The color of the flower dictates what… (read more…)
JukeboxBlock v1.1
This is a jukebox block. It changes the currently playing music each time the player presses UP or DOWN. You can configure which songs the jukebox will play and also how many songs it can cycle… (read more…)
Donkey Kong Country 2 Navigation Arrows
Remember carol's old DKC2 Navigation Arrows? They're back, in UberASM form!
What this resource does is show arrows in the directions Mario can walk in while on the overworld.
This originally… (read more…)
DMA Queue and Block Change Optimize v1.11
This is a patch that provides a DMA queue system, allowing you change GFX in VRAM easier. It also optimizes SMW's block change routine to allow more blocks to be changed in a single frame without… (read more…)
Johnny Test Whip Crack
The whip cracking sound effect from Johnny Test that probably gave you brain damage as a childContent of the Day
Yoshi's Lullaby
Current version -> 1.2
Started in end 2018, Yoshi's Lullaby is YoshiVert99's hack of Super Mario World 2, released on SNES. Discover 54 new levels through sublime landscapes and cool challenges to… (read more…)
Jelly Boy 2 - Motor Maze (Bumper Cars Section)
The background seen in Motor Maze 3, from Jelly Boy 2 where some bumper cars attack the player, while riding in their tracks. Could fit some indoors urban area, bonus area or even a house.
Credits… (read more…)
Skippable Castle Destruction Scene
This patch allows the player to press Start to skip castle destruction scenes.
Intended for speedrun/replay-oriented hacks, so that the player won't be forced to wait through the same cutscene… (read more…)
SMB1 Flagpole v1.2
This is the flagpole from SMB1. It can trigger the secret exit.
See the readme for more details.
GreenHammerBro's fix: Fix a bug that when the time limit hits zero while Mario is sliding down… (read more…)
Wonder Dog - Planet K 9
Planet K 9 from Wonder Dog on the Amiga. Good for athletic levels.Scrooge 64
The classic Christmas Carol setted in the Super Mario 64 universe.
Exit Level by Falling Offscreen
The name is self-explanatory: this code will exit the level when Mario falls offscreen, similarly to what happens in the original game in the Yoshi wings levels. In the asm file you can choose which… (read more…)
Castle of Time
Its an old team hack, made in 2006. Basically someone disturbed the castle of time and now chaos is about, yadda yadda.
Features:
Custom music, sprites, etc.
Type of hack: short… (read more…)