Hell yeah. A modded / hacked 3DS opens your console to so many game librarys from GBA, DS, SNES and other past consoles. You can also use homebrew software to do other cool stuff.
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minecraft and mk8dx + mkw

You may want to have something (screenshots, video) to show of your hack before posting

Also, unfortunately, this idea (NSMB2 remake) has been done before:
https://nsmbhd.net/thread/6010-new-super-mario-bros-2-ds/
https://nsmbhd.net/thread/1126-nsmb2-ds-hack/
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minecraft and mk8dx + mkw

The issue here is that Let's go dosen't have anything (screenshots, anything) to show about this "NSMB2 remake"

edit: VixDaGoob, tbh I'd rather only help ONCE the user has shown at least something with the project to show that the poster has done work.
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minecraft and mk8dx + mkw