I can't believe this actually released. I honestly thought this was never going to get finished. I mean, full game co-op? That seemed like much more work than anyone would be willing to put, and yet it happened, and it's even better than what I'd imagined. You even got worldmaps working. Really great work.

One question, or request, I guess. Is it planned to release the source code, or something that would allow applying coop to NSMBDS romhacks? That would make this so much better, to me at least, since the vast majority of my NSMBDS playtime is in romhacks and I'd really like to play those in multiplayer.

EDIT: Second question, does this hack work on nds-bootstrap? That's sort of the only way I have currently to play hacks on console, and I'm pretty sure MvsL worked with it, so I want to know if this works with it as well, since melonDS's wifi emulation isn't really ideal.
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Nothing to say, so jadnjkfmnjamnfjkldnajfnjkanfjdksan jsdnvj m.

Yes definitely, but not yet. The code still needs some cleaning up before it can be released and more features/tweaks are planned.
Also, I'd like people to just enjoy the hack for what it is for a while before it becomes used as a hacking template.


It should. I can confirm it works on real hardware through a flash-cart. If it doesn't work, let me know and I'll look into it.

Singleplayer support alongside co-op is also planned, that way this could be used as a future base for new hacks, who knows

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NSMB Hacking Discord

In my DSi XL with TwilightMenu++ works correctly
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Youtube - GitHub - NSMB Central

well that's perfect then. looking forward to trying this out.
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Nothing to say, so jadnjkfmnjamnfjkldnajfnjkanfjdksan jsdnvj m.

I found a couple of bugs while playing with my brother but would like someone else to confirm for me:

World 2-4: The secret exit Goal Pole's red flag on top doesn't appear, preventing the level from being completed through the secret exit. I opened up the level in NSMB editor and the red flag is still there, so it might be a memory issue but I'm not sure.

Warp Cannon: This bug is a bit more complicated. If both players try to enter the cannon at the same time the game softlocks (only the first person goes inside the cannon and then is stuck there and other person can't enter, the timer stops running and the game can't be paused). Also if both players are standing on top of the cannon Mario can't enter the pipe but Luigi can (and it softlocks there also).

I tested both on MelonDS and with my brother on 2 New 3DS XLs (through nds-bootstrap)

The cannon bug is already known, we are trying to address that issue, but it doesn't seem to be very easy to fix unfortunately

Regarding World 2-4 I didn't knew about it but I will check.
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NSMB Hacking Discord

When you save the game, for example in the first castle, the other DS will load it and you can continue playing or you have to begin the game again?

I suspect that player 1 saving causes player 2 to save too, like how other p1 menu/map actions are "recreated" by p2.

Theres a desync in world 8-2 and the dry bowser fight just to let you know

I can't believe that this is possible
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I hack MvsL, because I like playing MvsL with friends. Yes, I am lucky enough to have friends.

Old hack:

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This is so cool! Like NSMB2's Multiplayer mode, right?
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My 2 current NSMB Hacking projects, NSMB Adventure DS, and NSMB Adventure Wii. Download NSMB Adventure here

Better, since each player has their own camera.
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Nothing to say, so jadnjkfmnjamnfjkldnajfnjkanfjdksan jsdnvj m.

You think they could modify the bottom screen HUD to be like the early versions? Where it lets you keep 3 items and the sleeker looking progress bar and whatnot?

yes you could. editing the graphics would be pretty easy and  TheGameratorT made some code for the three item slots thing.
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Nothing to say, so jadnjkfmnjamnfjkldnajfnjkanfjdksan jsdnvj m.

Does this support online multiplayer with melonDS? And if so how does it work, thanks in advance!

Yeah, it's supporting but some times, it disconnect.
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hey but is it possible to use it with Newer Super Mario Bros DS because i get an error? it would be cool if you can, maybe collaborate with skawo;)

Lmao, it won't work there. And I REALLY doubt his team would be interested.
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NSMB Hacking Discord