See if the attached patch file fixes the issue with Miracle Jump. Be sure to back up your ROM first, since this is untested. If it works, I'll add it to the first post.
about this:
I run Delta patcher on the nds file, with above patchfile, result:
14:15:17] Original file "Summon_Night_X_-_Tears_Crown [patched] - kopie.nds" selected.
[14:15:30] Patch file "summonx-test.xdelta" selected, description found:
Summon Night X Dolfe fix test
[14:15:31] Applying patch, please wait... (don't panic!)
[14:15:35] An error has occurred: xdelta3: target window checksum mismatch: XD3_INVALID_INPUT