Tengai Makyou: Daiyon no Mokushiroku - The Apocalypse IV (Sega Saturn)
English Translation Patch - version 1.2
=======================================================================

This patch translates the Japanese Sega Saturn release of Tengai Makyou:
Daiyon no Mokushiroku - The Apocalypse IV (Hudson / Red, 1997) into English.

The complete game is translated, from the opening movie to the ending credits.

Version 1.2:
- Spoken lines that had no text in the original are now subtitled: the
  public-address announcement before the energy shaft sequence (Disc 2)

Version 1.1:
- The hero is now named Rizing everywhere (dialogue, menus, battle name tags,
  status screen and subtitles)
- Item counts ("x12") in the item, equipment and battle lists use the same
  narrow font as the item names
- Long item names no longer run into their count or the next column
- The main font's g, j, p, q and y now hang below the line
- Outlined text now has a complete black edge (easier to read on light
  backgrounds)
- Torai's shouted line on his name card is now subtitled
- The save screen's "Update record?" prompt no longer runs into Yes/No
- Another full script review: small meaning, grammar and wording fixes
Version 1.0: first complete release.


WHAT IS TRANSLATED
------------------
- All story dialogue, narration, NPCs, shops and inns
- Menus, items, equipment, magic, arts, status screens, save/load screens
- Battles: commands, messages, enemy names, party names on the battle HUD
- Minigames: roulette, poker, blackjack, sumo, robot battle, stock market,
  lottery, T-shirt designer (English keyboard), puzzle
- Burned-in English subtitles for the spoken lines in the anime movies,
  and subtitles for the voiced narration after the opening title card
- Ending epilogue and the staff roll (job titles in English)
- Chapter title cards (English only)

Left as in the original, on purpose:
- The title logo
- Staff names in the ending credits stay in Japanese, out of respect for
  the people credited (their readings could not all be confirmed)
- Song lyrics are not subtitled
- The hidden developer menu (see below) and other debug text


WHAT YOU NEED
-------------
Your own Redump-verified dump of both discs (BIN/CUE, 2 tracks per disc):

  Tengai Makyou - Daiyon no Mokushiroku - The Apocalypse IV (Japan) (Disc 1) (Track 1).bin
      size 652,809,360 bytes  SHA-1 e104b54642a487b4c56e0d3807027f4b00f4c242
  Tengai Makyou - Daiyon no Mokushiroku - The Apocalypse IV (Japan) (Disc 2) (Track 1).bin
      size 661,876,320 bytes  SHA-1 d57bb8dcc0f5799849973dd83920caac622de914

Only Track 1 of each disc is patched. Track 2 (audio) and the .cue files are
used unchanged.

No game data is included in this patch.


HOW TO PATCH
------------
The patches are standard xdelta (VCDIFF) files.

Windows: Delta Patcher (free: search "Delta Patcher" on GitHub) or xdelta UI
  1. Original file = the disc's "(Track 1).bin"
  2. Patch file    = TM4_English_v1.2_Disc1.xdelta (or Disc2)
  3. Save the result under a new name, then see "Keeping the CUE working".

Mac: MultiPatch.   Linux / command line: xdelta3
  xdelta3 -d -s "...(Disc 1) (Track 1).bin" TM4_English_v1.2_Disc1.xdelta "Disc1_Track1_English.bin"

Keeping the CUE working:
  Make a new folder per disc containing the patched Track 1, a copy of the
  original Track 2, and a copy of the original .cue. Either rename the patched
  file to the original "(Track 1).bin" name, or edit the first FILE line of the
  .cue to the new name.

Check your result (SHA-1 of the patched Track 1):
  Disc 1: 29aa353c4cf02b5606b3ca33051941b458de34ef
  Disc 2: 6e1c0fc28b09375469e0566ccf730a79d1919cca

Patch files:
  TM4_English_v1.2_Disc1.xdelta  SHA-1 3b9d5dab3d81bc97cea64aeaf6ffaf2722122b1e
  TM4_English_v1.2_Disc2.xdelta  SHA-1 844a10f494a512c0c46df78d6ed72b613c834a3d


PLAYING
-------
Tested in Mednafen / Beetle Saturn and on a real Saturn. On real hardware,
use a burned disc or an optical drive emulator (ODE). The game uses the
Saturn's internal memory or a memory cartridge for saves, as usual.

Changing discs (emulators, real discs): when the game asks for the other disc,
swap it as normal.

Changing discs on an ODE that cannot swap mid-game (Fenrir and similar):
  The patch adds a fallback. When the game asks for the other disc, it first
  writes a save record that resumes exactly at that point, and tells you:
  "Progress saved to Record N. Swap in DISC-2 now, or reset and load Record N
  on DISC-2."
  Reset, boot the other disc, press Start and load that record (it is labelled
  "Load on DISC-2" / "Load on DISC-1").
  - It uses the first empty record. If all three are used, it overwrites the
    most recently saved one, so keep a free record if you can.
  - Real disc swaps still work as before.

Developer menu: holding L + R while the SEGA logo shows opens the original
developers' debug menu (map select, flags). It is untranslated and not needed
to play. A normal boot is unchanged.


KNOWN ISSUES
------------
- Save records made with the unpatched game keep their Japanese location
  names on the load screen. New saves show English names.
- Names and gags typed in the T-shirt designer use full-width letters
  (6 characters, as in the original).
- Some rarely seen text may still overflow its window. If you spot any,
  please report it (see below).


FEEDBACK, BUG REPORTS AND REQUESTS
----------------------------------
Please send any issues, requests or other feedback to:

    justin@tooncesoft.com

For bugs, please include the disc, roughly where you were (town / dungeon /
event), what you expected to see, and a screenshot if you can.


CREDITS
-------
English translation: Justin Grimes / Tooncesoft (2026)
Contact: justin@tooncesoft.com
Original game: Hudson Soft / Red Company, 1997.

This is an unofficial fan translation, not affiliated with or endorsed by the
rights holders. Please support the official releases.
