So i was messing with NSMB2's save and i encountered a crash.
Things that i know:
There is no checksums in the save
I changed the streetpass tags to get the crash
The game will still accept the save even if the Streetpass section of the save is filled with FF and will look like this
Video of the crash happening on both a N3ds and a O3ds
I know that a crash doesn't always lead to an exploit
Things that i know:
There is no checksums in the save
I changed the streetpass tags to get the crash
The game will still accept the save even if the Streetpass section of the save is filled with FF and will look like this

Video of the crash happening on both a N3ds and a O3ds
I know that a crash doesn't always lead to an exploit