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Main - ROM Hacking - Megaman IV hacking question... New thread | New reply


Zidanerfox
Posted on 12-11-08 07:11 PM Link | Quote | ID: 96548


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Hi, everyone.

I recently got ideas for a small Megaman IV hack and slowly I try to learn some asm hacking. But currently I feel kinda dumb, Asm is really hard...

So, If there is someone who feel like they don't have anything better to do, here's my questions;

1) I would like to get rid of the password "system" in the game, no password usage. is it possible in any way?

2) My basic idea for this hack is, no stages exept Wily's so I need the game to jump from the title screen directly to Wily's castle intro. Does anyone know how to do?

I don't want people to think I'm lazy but some days Ijust think I'm just to stupid to learn asm myself, but I will continue to study it...

All help/tips will be appreciated. Thanks!

(Sorry for my sometimes bad English.)

koala_knight
Posted on 12-12-08 07:30 AM Link | Quote | ID: 96640


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2) I'm going to be doing something similar to Megaman 5. I'm going to make the game go straight to one of the Protoman stages to use it as an intro screen. If I figure anything out I'll post it.

ASM is hard to work with but if you keep practicing it you'll start to pick things up. Hang in there.

infidelity
Posted on 12-12-08 02:36 PM (rev. 2 of 12-12-08 02:40 PM) Link | Quote | ID: 96645


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Posted by koala_knight
ASM is hard to work with but if you keep practicing it you'll start to pick things up. Hang in there.


Cannot agree with you more. I've been working with asm since 06, and just 2 months ago I've been able to do some serious concrete work on my own without major assistance from other asm hackers. It's also incredibly difficult to learn when you have so many things in your personal life going on. I mean if I stumbled on all of this when I was 16, this would be a completely different story for me. It's so cliche, but if you really want to accomplish asm, just keep at it, it'll come along.

As to your 2 questions

1) it's very easy to disable the password "system." But if your looking to include a battery built in game save system, that's alot of work. I myself have no idea on that. But just the simple task of disabling the password "system." is fairly easy.

2) to jump to wilys castle you need to edit the stage cleared bits. Matrixz has a wonderful doc which he has dissected MM4. this is from his notes...

A9 : Clear Bits for Regular Stages
MSB
bit7 : Skullman
bit6 : Diveman
bit5 : Dustman
bit4 : Ringman
bit3 : Pharaoman
bit2 : Drillman
bit1 : Toadman
bit0 : Brightman
LSB

AA : Clear Bits for Cossack / Wily Stages
MSB
bit7 : Wily 4
bit6 : Wily 3
bit5 : Wily 2
bit4 : Wily 1
bit3 : Cossack 4
bit2 : Cossack 3
bit1 : Cossack 2
bit0 : Cossack 1
LSB

So basicly if you want to jump right to wilys castle when you start the rom, you need to have $A9 written as FF and $AA written as 08

I suggest looking around the $72### area when you begin the rom, so you can write the code in there, or just do a jsr somewhere that's free, and write to those registers. Go to that area during the copyright intro.

Good luck

EDIT - not sure if matrixz has his notes wrong, but it's 80 written in $AA, not 08. So put 80 in $AA

Zidanerfox
Posted on 12-12-08 04:57 PM Link | Quote | ID: 96655


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koala_knight <<< Thank you, help is always nice but i will continue my own research.

infidelity <<< And thanks to you too, I'll be sure to check Matrixz's documetation. Btw, I sure looking forward to the release of Megaman Ultra 2. The first game is one of my main sources of inspiration. Keep it up! ;3

Anyway, I'm happy someone did reply. Cool to hear from fellow megaman fans. Bye for now!

(P.S. I'm actually working on a Megaman 3 hack too. I started a long time ago because MM III was the first in the series I ever played and I wanted to make it just a bit more of a challenge. Sadly it's a non-asm hack but I think it's turning out great. Maybe I'll post screenshots later. )

infidelity
Posted on 12-13-08 12:28 AM Link | Quote | ID: 96695


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Posted by Zidanerfox
Btw, I sure looking forward to the release of Megaman Ultra 2. The first game is one of my main sources of inspiration. Keep it up! ;3


Thank you very much for that remark! Extremely appreciated!

koala_knight
Posted on 12-14-08 08:21 PM Link | Quote | ID: 96769


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Main - ROM Hacking - Megaman IV hacking question... New thread | New reply

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