0.81u1 [?]
WIP:
- 0.157: Alex Jackson renamed program ROM region so romload automatically picks correct width/endianness. Endian fix for sprite decryption.
- 0.155: Olivier Galibert and David Haywood fixed Raiden II New / Raiden DX - Game now playable. David Haywood added clone 'Raiden II New / Raiden DX (newer V33 PCB) (Raiden II EEPROM)'. Added EEPROM raidendx_eeprom-r2dx_v33.bin for booting as Raiden DX. Use standard video code in new Raiden II / DX / ZT sets. It still has the sprite protection. Added scroll. tx bank for Raiden II / DX. Make r2dx_v33 2 sets for now, with different EEPROM, the codepath it takes (R2 or RDX) depends on the content of the EEPROM, I haven't found a switching mechanism (there appears to be code in the ROM for booting with buttons pressed, but it looks broken to me). Better CPU banking. Fixed tile banking. Added sound banking. Replaced bad gfx3 dump. Fixed sound. Angle protection part 1. Special functions hookup. sqrt is probably newton. Added DMA. Re-added debug port so player can die [David Haywood]. Fixed tile banking [O. Galibert]. r2dx other dipswitch is flipscreen according to PCB README [hap]. Changed parent description to 'Raiden II New / Raiden DX (newer V33 PCB) (Raiden DX EEPROM)'. Changed OKI6295 clock speed to 1022727 Hz and VSync to 55.47 Hz. Added 'Service Mode' and 'Flip Screen' dipswitches.
- 20th September 2014: David Haywood - The other V33 based Seibu title using the 333 MCU is a Raiden DX / Raiden II New board. This board is curious, it contains the code for both the games mentioned above and decides which one to run based on a string at the start of the EEPROM (first it checks for 'RAIDEN' and refuses to boot if that isn't present, it then checks for II / DX). The thing most people point about first about this board is the terrible bootleg quality sound, and it's true, the sound is awful, I'd say it's worse than most bootlegs! Anyway, starting with Raiden DX, it appears the game is mostly untouched, and the 'New' version is rarely mentioned, maybe because it doesn't carry the 'New' moniker at all, it can however be identified from the gold tinted screen fades, and logo. The game seems intact, from what I can see level order is normal, because it uses EEPROM you have a settings menu instead of the dipswitch, but there's no real reason to want it over a regular Raiden DX due to the sound quality. Raiden 2 New is the better known title, but as a game it's been butchered beyond belief. For a start the iconic intro sequence is gone, the game just loops 2 attract demo levels and the high score table. The 'launch' sequence at the start of the game is also absent because the game uses level 5 as the first level(!) with level 1 appearing where level 5 would have done, this disrupts the flow of the game. The mid-game launch sequence seems missing too (because it would happen after level 5, which is now level 1, and I believe the ending 'mission complete' sequence is also stripped, looping straight back to level 1. (Still need to verify that last one). As mentioned, the sound it also awful, you do have built in autofire on button 3 like Raiden DX has by default, but it isn't much consolation. Quite why Seibu saw it fit to butcher Raiden II in this way, but leave a relatively complete Raiden DX on the very same board I don't know, it wasn't a space constraint, the Raiden II part of the ROM actually has just as much space available as a regular Raiden II, so I can only guess it was some attempt to 'streamline' the game (never a good term in gaming circles!). What makes this even stranger is there is no obvious way to swap between the games, despite the board having all the data for both. There does seem to be code in there designed to do such, but it looks like it's been disabled on purpose by depending on an 'impossible' condition to change. Reprogramming the settings EEPROM works, but isn't really practical. The other interesting thing from a hardware point of view is that while these use the reduced protection of the 333 COP they still feature the 'Sprite Protection' Olivier figured out for the regular Raiden II game, this indicates to me that said protection is probably part of the video hardware, and not the COP.
- 0.146u4: ROM_RELOAD work for clone Zero Team 2000 [David Haywood].
- 0.145u4: Graphic encryption value adjustment (machine\r2crypt.c) [Andreas Naive].
- 0.140u3: Changed visible area to 240x320. Added service mode, 2x coin slots and changed buttons from 2 to 3.
- 0.138u3: Changed description to 'Raiden II / DX (newer V33 PCB)'.
- 0.136: Added eeprom-r2dx_v33.bin EEPROM.
- 0.122u5: Renamed (raidndxb) to (r2dx_v33). Replaced V30 CPU with V33. Added OKI6295 (1MHz) sound. Changed region user1 to cpu1. Changed 'Raiden DX (set 3, Newer V33 PCB)' from a clone of 'Raiden DX (set 1)' to parent 'Raiden 2 / DX (newer V33 PCB)'.
- 0.81u1: Added 'Raiden DX (set 3, Newer V33 PCB)' (Seibu Kaihatsu 1993).
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Tokio / Scramble Formation
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Asuka & Asuka
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Raiden (Tourvision PCE bootleg)
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Raiden DX
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Raiden IV
Raiden Fighters
Raiden Fighters 2 - Operation Hell Dive
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Thunder Dragon 2
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Gaia - The Last Choice of Earth
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