Lord, there is so much wrong with this topic...
First of all, and correct me if I'm wrong, but I'm pretty sure these aren't graphics for the game. Also, minus the Kirby music, these are taken straight from the music folder of SMBX-38A, as that version uses SPC files for SNES songs. I also haven't been keeping up with SMBX 2.0, so I'm not sure if these won't work with vanilla SMBX or SMBX 2.0. I may be wrong on that last part.
This also means anything I share that's SMBX related will be for the 38A version. You are more than welcome to make masked versions of my graphic submissions for any versions of SMBX that use sprite masks. Please just let me know.
Come join the SMBX 38A Server!