Ends 12/22/2010 12:00 AM

Super RMN Bros. 2 is a community event where everybody makes 2D Mario platformer levels which then all get put into one game: Super RMN Bros. 2! The tool used for this is Super Mario Bros. X v1.3, a PC Engine made to emulate the Mario games made on the NES and SNES. This event is a followup of the previous Super RMN Bros. event, which was a great success (submission-wise, at least)! Whip out those old Mario level drawing you made when you were eight! Live the dream of making your own Mario game! Show once again that RMNers can do more than just make RPGS!

What You Need to Participate

Super Mario Bros. X v1.3, available at the DONWLOAD NOW! link. This is the latest version of SMBX with new features like Ice Flowers and different playable characters. Make sure you download the correct version, the file size should be ~37.6MB. It has everything you need to get started from the player, the editor, and a sample world.

You can also download the SMBX Graphics Pack by Red Yoshi at the bottom of the page. It has a ton of Mario Brothers graphics that you can use in your level with a simple copy+paste!

Just What is Super Mario Brothers X?

Super Mario Bros X is a freeware game engine by Redigit geared towards having the gameplay features and physics of Mario 3 and Super Mario World while adding a ton of cool features and not having to deal with the restrictions of the old (S)NES hardware. Since we first had RMN Bros using 1.2 Beta 4 SMBX has move onto version 1.3 adding new content such as some of the Koopalings, new features such as being able to customize NPCs, and general fixes such as reducing lag in the engine. If you really want to see what SMBX can do, check out these videos showcasing SMBX's capabilities!

Games are distributed as a world with levels package they can add to Super Mario Bros X and play from the main game. So far there's no way to make a self contained game so all players will need to download SMBX in order to even play the game. The game does come with a large set of graphics and sounds like the RPG Maker RTPs so everybody at least has a large number of platformer resources to work with (and it'll keep the download of the actual game itself small).

You can view the RMN engine page for SMBX here.


The editor can be tricky to use, especially for beginners. You can ask questions on our SMBX Help thread on our forums! If you have any questions go there for some tips or helpful links.

We also have a tutorials section on RMN for SMBX. As of now it's pretty empty but hopefully members will submit more over time.

There's also the official SMBX forums filled with much more knowledgable people than here.

Submission Rules

  • Levels must be compatible with the official release of SMBX 1.3 . aka Use SMBX 1.3 .
  • All submissions must be compressed. Downloading *.lvl files is twice the headache than a *.zip or *.rar file. I'm not even going to bother with anything that isn't compressed.
  • Each individual submission can't exceed 1MB compressed. You can fill it up with all the custom music or graphics you want but a submission can't exceed this size.
  • There is no limit to the number of levels you can submit.
  • Rate the difficulty of the level on a scale of 1 to 5, with 1 being easy and 5 being hard.

Level Rules

  • The end of level marker is always a star. Each level can only have one star in it. Stars give a progress indicator throughout the game and for individual levels and since all levels will be available at the start of the game Stars are the best way for players to know what levels they've already done.
  • The player who got the star can't die after getting the star.
  • Water and waterfalls are swimmable as per Mario Bros 3. (No Mario 2 and it's waterfalls don't count). If you want lethal liquids stick with red lava. This is for clarity for players. Blue = Swimmable, Red = Danger!
  • You can't finish a level with a Yoshi. This is to prevent players from bringing Yoshis from one level to another and they drastically redefine what a player can do. You can force this by having a pipe/door/warp of some sort that doesn't allow Yoshis prior to any exit.
  • The player can't enter a no-win situation. At any point where the player is safe they must be able to complete the level.
  • Multiple characters are allowed. (SMBX v1.3 allows the player to play as Mario, Luigi, Toad, Peach or Link.)
  • Collectathons are not allowed. SMBX has no way of tracking what items you've collected and Mario takes too much damage to allow such a level.

Level Quality

  • Levels that don't meet a minimum level of quality will be rejected.
  • Levels must be complete and stars must be possible to acquire.
  • If you are creating an autoscrolling level please check the Autoscrolling Tutorial for a guide of how to do it. Using scrolling layers leads to physics and collision issues and levels with these issues will be rejected.
  • If a level plays like something you'd expect from a Kaizo-style romhack it will be rejected. Go start your own project if you want yet another impossible Mario game. We're shooting for fun platforming action Mario style that doesn't require precognition, time manipulation, or godlike reaction to beat.
  • Levels can't cause SMBX to reach a volatile or glitchy state nor can they cause level/section wide slowdown in SMBX.
  • Participants who submitted rejected levels will be notified of such, the cause of rejection, and a period to correct issues.


  • All levels will be available at the start of the game. There is no requirement to complete one level to unlock others.
  • Yes it will be a world map. (No hub world!)
  • Eight worlds, one Mario! (or Luigi, or Toad, or Peach, or Link!)


You must be logged in to sign up for Super RMN Bros. 2.


Well that's disheartening... Didn't know you can grab the bombs.

Just 3 boss fights with lava and bombs while swimming and moving spikes with only 1 mushroom. All the bombs made everything slow down, so I made the bombs go half the speed. I have beaten it before. Its all the boss fight.

edit: Davenport's levels seem wacky. They are all a healthy length, but some of that healthy length is cheap extra rooms to fluff it up. One such room froze the game to a hault, because of 80 piranah plants coming out of the walls.

After playing 4 hours, I still say Ratty Ruins is the toughest yet. It beats out Ancient Ruins... but that level was made easier. Plus Princess makes that level easier, but she doesn't for Ratty Ruins.

I've had to edit about half of the levels. Some minor things like mistakes. Some major things too, like lazy mapping. Plus there are way too many Ludvigs compared to the rest of the bosses. :-)
RMN's Official Reviewmonger
You do realize how dull the finished product will be for you now that you've played all the levels, right?
I already played the levels before starting this project. In fact I think I reviewed all of them. Now that I'm playing it as a game, its not dull. Hence why I went through 4 hours and 54 levels earlier.
I remember that boss with the lava and spikes and bombs. It wasn't that bad. A few more powerups would be nice but the only time I ever got hit was in the moving spikes part. It does last a long time though, would be nice if it was a tad bit shorter.

Usually when I'm playing a game I learn the movement patterns of enemies and find ways to manipulate them. It's not hard to control the ghosts so unless your flailing around(or make a mistake) it shouldn't be too hard. But then again I'm a robot.
I already played the levels before starting this project. In fact I think I reviewed all of them. Now that I'm playing it as a game, its not dull. Hence why I went through 4 hours and 54 levels earlier.

It's not like it's an obsession or anything. Or is ShortStar in love with the small italian plumber?...
Its just a lot easier to make Mario levels than RPGs.

edit: 5 hours in, 62 stars. We're almost up to the length of a commercial game!
6 hours in. I have 66 stars now. Davenport's Haunted Palace saps my will to live. Good thing I said that. Just beat it... after 20 minutes and 3 lives. Davenport levels are like an investment. You may lose 3 lives, but gain 15. Its a good thing I've been playing everything from the beginning.

And now its done.
Download my version of Super RMN Bros 2.
Welldone! The world maps look great.
Shortstar! Why does my level galaxy slide have the start point half way through it?
I never touched Galaxy Slide. In fact I don't remember a halfway point and I've played it 10x back to back to test something with the world. Your level was just the easiest to beat.

edit: Halfway through? That's how I downloaded it. You might want to check on that.

edit again: I see there is a whole other section. I will upload.

>> fixed.
It's my mistake? Whoops! Better tell GRS!
Don't know who's it was, but when I started this, I got a fresh download of everyone's file. I even deleted the ones I had.
Well done Shortstar, brilliant work.
Thanks Faenon. I only did the world. Everyone else deserves credit.
Thanks Faenon. I only did the world. Everyone else deserves credit.

shortstar, everyone knows that my levels wouldnt exist without your help.
Thanks for the praise. You had the talent in you, just not the training.
Thanks for the praise. You had the talent in you, just not the training.

I'm a dog pirate
Shortstar, you never commented on my first-ever levels/results of the first time playing with the program :D
They were solid SMB3 and SMW levels.
So is ShortStar's version the final version of Super RMN Bros. 2. If so is there going to be a game page?