Mushroom Kingdom Fusion is a fan game with heavily modified Mario-style platforming game play, crossed over with many other video game elements and universes. Please note that this is NOT A PURE MARIO FAN GAME ANYMORE. It may have started out as such, but now, the game has a very distant relation to a Mario game.

Key features:

  • An overall dark atmosphere of the game.
  • Modified Mario-style gameplay, with SMB2 mechanics (veggie pulling, Subcon enemies) and guns.
  • A roster of playable characters, both from within the Mario universe and outside of the Mario universe. Each character will have their own unique powerup system and gameplay mechanics, adapted to fit within the Mario-based gameplay.
  • Extremely variable worlds and levels. Game worlds will feature a traditional Mario world at the beginning. Later worlds will be based off other video games. Other worlds will feature completely original levels. The plot centers around the Mario universe, with stories extending out to other video game universes and even an alternate version of our Earth.

This fangame is founded by JudgeSpear (now retired) and is developed by the Fusion Team, which consists of:

*Obreck2 (project lead, coder, level designer)
*Lars Luron (level designer,spriter,coder)
*Shodian (coder, character designer,level designer)
*Hello (engine creator, level designer, coder, honorary member)
*ProjectTerra (AKA Genisi: level designer)
*NO Body (spriter)
*Delth88 (AKA Del - various)

Notable contributors:
*AuraLancer (coder, level designer)
*Riverroad (coder, level designer)
*uncanny_valley (coder, level designer)
*Pouncer26 (level designer)
*weird_bananas (level designer)
*DC Hunk (spriter)
*Ultimate_Gamer (level designer)
*Mew (consultant, storyboards, level designer)

*Tron Knotts (spriter)
*Psychopath (coder)
*Finlander (level designer)
*Yoshbot (journalist)
*StarsimsUniverse (Mega Man consultant, level designer)
*JDogindy (level designer, spriter)
*Captain Cook (level deisnger)

To get more information about Mushroom Kingdom Fusion, visit these links:
Wikia site:
YouTube channel:

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Mushroom Kingdom Fusion Screenshots Mushroom Kingdom Fusion Screenshots Mushroom Kingdom Fusion Screenshots

The newest Beta version of Mushroom Kingdom Fusion, v0.4, has finally been released. This newest version contains a much more streamlined version of the game, with faster load times, smoother gameplay, and less lag altogether. It also has other features, such as improved flight mechanics, new powerups, and red coins you can collect for bonus prizes. And of course, new levels; 35 in total.

Edit: Water Temple's music is missing, if you want it download it here and put it in the music folder.

Here's a couple videos to show off some of the new content:

Haven't updated this blog in a while....

Haven't updated this blog in a while....

6 years ago News 5 comments

But the project has been very much alive the whole time.

Mickey Mouse Joins The Coalition!

Mickey Mouse Joins The Coalition!

6 years ago News 14 comments

Mickey Mouse, the lovable mouse from the Walt Disney cartoons joins the Coalition.

MKF now has its own YouTube channel! Video clips included!

MKF now has its own YouTube channel! Video clips included!

6 years ago News 4 comments

JudgeSpear's YouTube channel is one of the main places to find MKF videos. Other members do not have the exposure that JudgeSpear has on YouTube, so their...

New MKFusion YouTube Channel

New MKFusion YouTube Channel

6 years ago News 0 comments

See the WIP videos of all our Dev teams members on one channel.

Mushroom Kingdom Fusion is a fan game with modified Mario gameplay, crossed over with many different video game universes and elements.
RSS Feed Downloads
Mushroom Kingdom Fusion v0.4 Exe

Mushroom Kingdom Fusion v0.4 Exe

5 years ago Full Version 13 comments

The newest Beta version of Mushroom Kingdom Fusion, v0.4, has finally been released. This newest version contains a much more streamlined version of the...

Mushroom Kingdom Fusion Demo v0.2.5 Beta

Mushroom Kingdom Fusion Demo v0.2.5 Beta

7 years ago Demo 5 comments

A short playable version of Mushroom Kingdom Fusion.

Post comment Comments  (70 - 80 of 125)
Gin Nov 20 2008 says:

It might be cease and desist if anyone from sega or nintendo sees this........

+1 vote     reply to comment
Obreck2 Nov 21 2008 replied:

Fortunately most game companies have concluded fangames pose little threat to them and shutting them down does little but make them look like jerks.

For the most part game companies are willing to look the other way so long as you don't break the following rules:

- Don't make a profit (That could have been their money)

- Don't make a direct remake of one game (Could threaten future remakes of their own. A fan made Chrono Trigger remake was shutdown because of this)

- Don't shamelessly insult their company or use their characters in an obscenely inapprorate fashion (A game having Mario doing porno stuff wouldn't likely go down well with Nintendo)

Nintendo most likely knows about us at this point, as we tied for best in show at the recent NCFC convention and have been a hot topic at the MFGG forums. Sega, Capcom, and SNK have all released statements saying they're ok with fangames on the most part. If an other company were using content from tells us to stop, we'll remove their content and move on.

+1 vote     reply to comment
FusionTeam Creator
FusionTeam Nov 20 2008 replied:

Nintendo and Sega do not care as long as the fan project is not profited from or discredits them or any third party.

+1 vote   reply to comment
Obreck2 Nov 19 2008 says:

For those complaining about the difficulty, yeah we got a bit carried away with cranking out alot power play stages first. Over time easier stages should be added, or at least some of the stages will be toned down a bit to force some easier game play in.

Don't expect it to ever get as easy as modern games though. There will always be that 8bit/16bit era brutality going on in this game.

+1 vote     reply to comment
_dhk_ Nov 21 2008 replied:

Consider you as the creators know what's going to happen in your game. That makes for sure a difference especially in this quick gameplay.
I just mean to give advice, not complain.

+1 vote     reply to comment
_dhk_ Nov 18 2008 says:

I've just played the demo. Brilliant work!!
But I feel it's much too difficult.

+1 vote     reply to comment
koto_azure Nov 12 2008 says:

Awesome demo, though my only gripe is the FPS, it's a bit sluggish here and there.. Though it might just be I have it windowed. Oh well. awesome job ^_^

+1 vote     reply to comment
Togranigdo Nov 12 2008 says:

I can only play stage 1, because I'm not veteran.

Anyway, great and very impossible demo!

+1 vote     reply to comment
_dhk_ Nov 12 2008 says:

This looks BRILLIANT!!!

+1 vote     reply to comment
ussr1943 Nov 5 2008 says:

I'd rec. that music anywhere, it's from TS2
<3 timesplitters.

+1 vote     reply to comment
DRIV3R Nov 10 2008 replied:

yeah timesplitters!!! ^^

+1 vote     reply to comment
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Mushroom Kingdom Fusion
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Mushroom Kingdom Fusion
Mushroom Kingdom Fusion
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4 years ago
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