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juzcook, SMW Central

Invictus is a ROM hack/mod of Super Mario World by juzcook. It is a chocolate kaizo hack with a touch of vanilla that will challenge even the most experienced players. It aims to be fun, whilst remaining difficult albeit fair.

Pink Gold Peach, SMW Central

Mario is back for more adventures! This time, Bowser has stolen the 12 Magic Orbs that were kept in Princess Peach's castle. Mario, as a dedicated plumber and adventurer, decides to find the 12 Magic Orbs and put them back in their place. This Super Mario World hack features 94 levels and 112 exits, music, enemies, original bosses and new power-ups.

Gamma V, SMW Central

This hack attempts to be what the real Mario is Missing should've been. There are no geography lessons here, just platforming and head-stomping.

superwiidude, SMW Central

A Super Mario World ROM hack that yet again puts Mario on a quest to stop Bowser and rescue Princess Peach, featuring all-new custom sprites, music and blocks!

PokerFace, SMW Central

Adventure through merciless piranhas which will devour any human beings who cross them.

T. Takemoto, SMW Central

Kaizo Mario World, also known as Asshole Mario, is a hack created by T. Takemoto for his friend R. Kiba. It features extremely sadistic, unique and groundbreaking level design. This is also the hack that started it all, since the kaizo genre wasn't existent beforehand. The literal translation of "Kaizo Mario World" is "自作の改造マリオ（スーパーマリオワールド）を友人にプレイさせる", or in plain English, "Making my friend play through my Mario hack (Super Mario World)". Kaizo is a rough translation of the word "modify" or "change" in Japanese. However, due to this Hack, Kaizo has now become a catch-all term for extreme and possibly "unfair" difficulty hacks.

T. Takemoto, SMW Central

The second installment in the Kaizo Mario World series (rom hacks of Super Mario World).

T. Takemoto, SMW Central

The third installment in the Kaizo Mario World series (rom hacks of Super Mario World).

GbreezeSunset, SMW Central

Banzai Mario World features: -Tons of levels and secret stuff, for a total of 40 exits! That makes it one of the longest Kaizo hacks ever made. -Plenty of custom music, sprites, blocks, and graphics. -An easy, beginner friendly difficulty level that should be able to introduce players to Kaizo. No more frusturation over not being able to beat something! -There's a unique ASM gimmick in virtually every level! -Six themed worlds and one special unlockable level, making it a truly full-length Kaizo hack. -Ninety-nine lives given in the beginning of the game, so no more game overs (hopefully)! -A hidden moon in every single level for the completionists out there. -A difficulty level that can work as a perfect first Kaizo hack, although the hack fits well for players of all skill levels.

Gamma V, SMW Central

Mario & Luigi: Kola Kingdom Quest is a reboot of Super Mario Bros. 5 Reborn. This 74-level hack uses many of the same tilesets and music tracks, and World themes, but contains completely redesigned levels and a new, much less blocky Overworld. It also features REAL HDMA gradients and custom Layer 3 images. Difficulty is probably comparable to the average Mario game. It starts out easy, but gets harder as the game progresses.

PangaeaPanga, SMW Central

Super Dram World is a ROM hack of Super Mario World created by PangaeaPanga. The hack is intended to resemble the Kaizo Mario World series in level design and difficulty.

PangaeaPanga, SMW Central

Super Dram World 2 is a ROM hack of Super Mario World created by PangaeaPanga and is a sequel to Super Dram World. The ROM hack was dedicated to dram55, who is best known as being one of the top Kaizo Mario World speedrunners.

pieordie1, SMW Central

Shining Stars 2: Mirror Madness is a ROM Hack made by pieordie1, and is the second installment in the Shining Stars series. Unlike other SM64 hacks, someone can select any character to play in this hack such as Luigi, Wario, Waluigi or Toad.

carol, SMW Central

It is a Super Mario World ROM hack created by a mysterious Japanese ROM-hacker who goes by the name of Carol. It's well known for being a hack with a large amount of custom bosses and ASM gimmicks, with its development being started when such things were but a dream in the SMW hacking scene. The hack contains several references to many other video games, from Final Fantasy, to Twinbee, to Kirby, to Mega Man, to even Cho Aniki of all things. Each level contains multiple enemies and even bosses. A level may contain more than 1 boss, though this is common.

Golden Yoshi, SMW Central

SMW2+2 is a ROM hack of Super Mario World 2: Yoshi's Island, which builds a whole new game using the engine of the original game. The stork was peacefully on his way to deliver future heroes Baby Mario and Luigi to their parents, when all of a sudden, Kamek appeared in the skies. He quickly attempted to snatch the babies from the stork, only managing take Baby Luigi, while Baby Mario fell to the ocean. Luckily, he lands on Yoshi’s Island. The Yoshies gather and ponder how to remedy the situation. The Yoshies decide to carry along Baby Mario, and call upon the Chosen One to face Kamek. The Yoshies don’t know the exact identity of the Chosen One, but know that he always watches over and protects the Yoshies, and has an immense amount of power. Why has Kamek kidnapped these babies? And just who is this mysterious Chosen One? You will find out when you play! What this hack features… 50 all-new levels of classic Yoshi’s Island design! Journey through 5 worlds to reunite Baby Mario with Baby Luigi. Now unlock an Extra and a Secret level by scoring 100% on each world! Enhanced Yoshi colors! Every Yoshi now has its own boot colors, as seen in the introduction scene. Plus, two new Yoshi colors, gray and black, for the Extra and Secret levels. Pit of 50 Trials, inspired by the Pit of 100 Trials in the Paper Mario series. How many floors can you beat? And what will you win? Custom level icons

Golden Yoshi, SMW Central

SMW2+ is the first ever full ROM hack of Super Mario World 2: Yoshi's Island. It has 54 brand new levels.

GooseDaJuice, SMW Central

Super Mario's Jammin' Journey 64 is a ROM Hack of Super Mario 64 created by GooseDaJuice. This hack features 70 stars and over 8 new worlds and secrets with a traditional focus on platforming under medium difficulty.

Frauber a.k.a Messiaen, SMW Central

Super Mario 64 The Missing Stars is the first official major ROM hack of Super Mario 64 ever created. It was initially released in April 2009. Main Features: - 38 stars in about 10 levels - A Day/night cycle replacing (most) act selectors - Choose to play as Mario or Luigi - Modified enemies, objects and bosses (too many to list!) - Custom music, including one original song (the town "night" music). - A new final boss fight

Kaze Emanuar, SMW Central

Peach's Christmas Invitation is a mini-hack made by Kaze Emanuar, released for Christmas 2013. It only has one full level, with one side level and two stages which lead to a final boss. Though short, this hack contains lots of custom enemies, unique levels, custom stuff and interesting missions.

TheGael95, Aglab2, SMW Central, ROMHACKING.com

SM64 Ztar Attack Rebooted is a rom hack made by TheGael95 and Aglab2, it is a remake of Super Mario 64 1.5 Ztar Attack! featuring 170 Ztars, reworked smaller levels and new gimmicks.

AloXado320, SMW Central

Bounce Tales 64 is a ROM hack/mod of Super Mario 64 based on the mobile game Bounce Tales. It is a side-scrolling platformer in which the player controls a red ball, instead of Mario.

AloXado320, SMW Central

Isabelle 64 is a ROM hack/mod of Super Mario 64 starring Isabelle from Animal Crossing: New Leaf. Isabelle has a double jump, which diferentiates her from Mario and makes platforming easier, and there are graphical differences to match the Animal Crossing presentation (Stars are now Golden Leafs, for example).

Final Theory, SMW Central

Super Mario Logic is a ROM hack/mod of Super Mario World, which transforms the game in a puzzle/platform game. The player has to use the game mechanics to proceed to the next screen. Kamek has cast a magical spell on the Mushroom Kingdom, turning it into a strange new land. Join Mario on a brand new adventure as he conquers each task an order to break the spell and return the land back to normal.

PangaeaPanga, SMW Central

Panga's Kaizo Kindergarten (For Dummies) is a ROMhack/mod of Super Mario World by PangaeaPanga. It is design to be a beginner level kaizo hack, teaching the basics of the advanced movements required to play other games of this genre of ROMhacks.