According to melonDS, the sprite size is "too large". I am on Windows, using BlocksDS and NFlib. This is a screenshot of melonDS:
And this is the code :
#include <stdio.h>
#include <nds.h>
#include <filesystem.h>
#include <nf_lib.h>
#include <nf_basic.h>
#include <nf_sprite256.h>
#include...