These patches apply to the Japanese version of Keio Flying Squadron 2 (known in Japan as Keiou Yuugekitai - Katsugeki-hen).


First off, the "KEIO2-Japan-English.xdelta" patch replaces almost all Japanese text in the game with English assets from the European release. The exception is the checklist titles under "Extras" mode, but the hints are in English and the bonus screenshots are from the English release. This patch also replaces all Japanese voiceovers, movies, SFX, with the English ones. Well, actually, after patching you should replace tracks 17-21 with the ones provided in the "English CD Audio Replacement" folder. These include the English CD audio  title screen audio, and the end of chapter static screen voiceovers audio.


Speaking of which... the end result here is a version of the game almost identical to the European release, except running in NTSC 60hz, without cutting short the end of chapter static screen voiceovers audio (that's what happens if you run the PAL version game in NTSC mode).


Okay, so the other patch, "KEIO2-Japan-English-JPNVoices+Title.xdelta" will give you all the same Japanese to English text replacements. But this version keeps the original Japanese voiceovers, movies, SFX, and the Japanese title screen. No need to replace any tracks here, as we are keeping the Japanese dub here.


Both versions tested in RetroArch Mednafen Saturn core.



Apply either patch with Delta Patcher:



Original file: Keiou Yuugekitai - Katsugeki-hen (Japan) (Track 01).bin


Xdelta patch: KEIO2-Japan-English.xdelta
or

Xdelta patch: KEIO2-Japan-English-JPNVoices+Title.xdelta