Mega Man 2: Rockman/Mega Man 2 - Slide and Charge Shot

This is a patch intended for Rockman 2 or Megaman 2, which adds sliding, and charge shots to the game. Sliding is based on Megaman 3 physics, and charge shot is the large version from Megaman 5.

Also included is Weapon Swapping via Select Button.

It is free to use for any Rockman/Megaman 2 hacks if desired.

Rockman 2 Slide and Charge Shots patch Version 1.2

- kuja killer / Mike [401K4svwHuWM] @ 5ch Remodelling Rockman Thread
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July 6, 2022 - version 1.2 - Some bugfixes, and MM 2 randomizer

** Flashman battle, if you open/close menu while he freezes you
** Switching Flash Stopper to other weapon at dragon boss autoscroll
** Touching energy drops when sliding wont "auto jump"
** Finally fixed graphics corruption with select button, i hope

** Adjusted some areas on english version, for Megaman 2 Randomizer compatibility.

August 9, 2018 - 2 Bugfixes for weapon swap on bosses/item 1-3

August 6, 2018 - Version 1.1 - Bugfix patches used from Puresabe's website here:
http://borokobo.web.fc2.com/

[30] sprite processing bugfix
[40] delay scroll bugfix
[90] Pipi bugfix
[100] Wily Machine bullet hitbox correction
[110] Infinite item bugfix

** You can open pause menu now, while shots are on screen
** You wont fall off ladders when exiting menu
** Weapon swapping with Select Button

August 3, 2018 - Version 1.01 - Added Megaman 2 version, fixed pixel on standing frames, added proper hitbox when hit from enemies on slide.

August 2, 2018 - Version 1.0 - First release

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Please apply to a clean Rockman 2 ROM, or Megaman 2 ROM
This is free for use, and may be used for any future Rockman/Megaman 2 hacks.

It adds Mega Buster charge shots (mm 5 size/type), and sliding (mm 3 physics) to Rockman 2. I do not have ASM files, as it's all done via hex editor.

** free space rm2.cdl - used with FCEUX Code/Data Logger tool, to locate free space in the ROM

** Rockman2.nes.F - labels file for FCEUX debugger's "symbolic debugging" feature

** rockman 2 labels.txt - RAM notes for very much stuff
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** Refer to these offsets to change settings if needed:

$3891D, $38928: 02 + 80 (paired, sliding speed 02.80 pixels/frame)

$3F2E0-E7, $3F2F0-F7, $3F300-07 (japanese): Buster Charge Palettes
$3F710-27, $3F720-37, $3F730-47 (english): Buster Charge Palettes

$2EAC0-CD (japanese): Damage table for large charge shot: bosses
$2EAE0-ED (english): Damage table for large charge shot: bosses
*Note: "FF" heals a boss to full, kept for Alien Wily

$3F430-AF (japanese): Damage table for large charge shot: enemies
$3F470-EF (english): Damage table for large charge shot: enemies
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No-Intro Name: Mega Man 2 (USA)
(No-Intro version 20130731-235630)
File MD5: 8E4BC5B03FFBD4EF91400E92E50DD294
File SHA-1: 2290D8D839A303219E9327EA1451C5EEA430F53D
File CRC32: 5E268761
ROM MD5: 0527A0EE512F69E08B8DB6DC97964632
ROM SHA-1: 2EC08F9341003DED125458DF8697CA5EF09D2209
ROM CRC32: 0FCFC04D
*
No-Intro Name: Rockman 2 - Dr. Wily no Nazo (Japan)
(No-Intro version 20130731-235630)
File MD5: 055FB8DC626FB1FBADC0A193010A3E3F
File SHA-1: FB51875D1FF4B0DEEE97E967E6434FF514F3C2F2
File CRC32: 30B91650
ROM MD5: 770D55A19AE91DCAA9560D6AA7321737
ROM SHA-1: 3E9DC769E1B63E73834786EC7FE9EDE7E706C72F
ROM CRC32: 6150517C