hello! i'm new in nsmb hacking, and i,m making my first rom hack! it's called jack mario ds
i would like to put some patches.
firstly the twirl patch, like the nsmbwii one
and the helicopter suit!

Follow these tutorials :
1st:https://nsmbhd.net/thread/1281-how-asm-hacks-are-setup-tutorial/
2st:https://bookstack.nsmbcentral.net/books/new-super-mario-bros/page/setting-up-code-modifications
they explain everything you need to know for patching your rom , I recomand to do a backup if something goes wrong
you can find a lot of patchs here : https://nsmbhd.net/wiki/ASM_Hacks/

Also if you finished your hack and want to post it don't upload the nds file , create a xdelta/nmp file with this :
http://nsmbhd.net/thread/642-how-to-import-and-export-patches/

If you want i could help you with your hack
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The Rom Hacks That I Made/Working On :

I need beta testers for my hack : PM me heeerre
Shhh...