yomcube

From https://github.com/Swiftshine/Penguin-old/blob/main/include/penguin/savefile.h

Save Data

NSMBW save data is stored in big-endian.

Offset	Length	Type	Notes
0x0000	1696 (0x6A0)	Header
0x06A0	14592 (0x3900)	SaveSlot[6]	3 normal, 3 quick, in that order.

yomcube

https://github.com/NSMBW-Community/NSMBW-Decomp/blob/master/include/game/framework/f_base.hpp

Offset	Name
0x08	int create();
0x0C	int preCreate();
0x10	void postCreate(fBase_c::MAIN_STATE_e state);
0x14	int doDelete();
0x18	int preDelete();
0x1C	void postDelete(fBase_c::MAIN_STATE_e state);