The easiest way to extract video game sequences and convert them to MIDI and SoundFont files is by using (Video Game Music Translator). It scans whole DS ROMs, identifies the underlying SSEQ sequence data, and translates it natively into clean .mid files. Step 1: Gather Your Tools
do you plan to use the MIDI in (e.g., FL Studio, MuseScore)? mini2sf to midi
is a compact tool/format (often a small utility or script) that converts Nintendo DS/DSi/3DS soundfont files or game audio data packaged as Mini2SF into standard MIDI and/or soundfont-compatible outputs. Converting Mini2SF to MIDI lets you extract musical note/event data from game music for editing, playback with general MIDI instruments, or arrangement. The easiest way to extract video game sequences