NES FCEUD codes by Abystus

[Unicode]

Mega Man 3 (U) GG FCEUX

Allow Access to Any Defeated Boss Stage
AAOOGLSI

I now tested this code and it works perfectly. It allow you can play again also stages Doc Robots (where you fight Megaman 2's bosses).

[rimsky82]

Variants of FCEU have different debugging tools, some more advanced than others. For instance, the version I use has conditional breakpoints which makes the more advanced codes easier to find.

I have noticed that if you add a genie code in fceu with the genie decoder, it will work fine... until you disable it and re-enable it. Then it discards the check byte, and writes the value byte on every page, most of the time crashing the game. So in the code handling of the code somewhere, the check byte wasn't taken into consideration. It's buggy stuff like that that irks me, however it's one of the best debuggers I've ever used.

[Abystus]

Robocop 3 (U) GG FCEUX

One Hit Kills (Alternative. Couldn't get the Galoob code to work.  Do not use on the "The top of the OCP Tower" stage or the game will not end if you kill the ninjas.)
AOKYAAEP

Hit Anywhere (Best used with one hit kills.)
AEENAEUT

Infinite Efficiency
OUXYPOSO

[OldSchoolGamer]

That's why I prefer Nestopia to play games, test cheat codes, and utilize cheat codes. I've never experienced any problems using Nestopia. All valid cheat codes I've ever used/tested in Nestopia have always worked. There's no doubt that FCEUX and it's variants are the best emulator to find/create cheat codes. But to actually test out those codes, utilize those codes, and play games... I prefer Nestopia all the way.

[Abystus]

Blades of Steel (U) GG FCEUX

Start a New Game to View the Ending
YASGITLA

@OldSchoolGamer

I didn't see this "Mini-Game" during the small amount of time I played it (took me about 10 seconds to find the menu modifier address and maybe a minute of seeing what values did what). If you could provide a Saved State of the beginning of what your referring to it would be helpful. The only thing outside of normal play that I saw was a third person view against the goalie (which had no time limit from what I could tell) and the general fight between 2 players.

Edit:

Appears ReyVGM has already looked into it. I figured it wasn't that big of a "Mini-Game" if it didn't appear in the menu modifier address.

[nolberto82]

All variants of FCE have problems with certain Game Genie codes. In a few codes I made I warn people not to use FCEUX because of undesirable effects. FCEUX 2.1.5 to me seems more unstable than 2.1.4a I kept getting crashes while using the debugger.

[Abystus]

My post was not directed towards you. It wasn't directed towards anyone. I was just curious as to why someone would use an older version and why someone would use a different variant of FCE** instead of the all-in-one FCEUX. The title of your thread never entered my mind. I was basically just interested in learning if there was some special reason as to why not using FCEUX 2.1.5. Maybe there was something I didn't know about as to why some people don't use it.

Well from my experience all variations of FCE don't play/react to codes the same. Also your OS may be a factor (usually not the case) into why certain codes don't work on a particular version of FCE or it could be other factors all together. I have found things that don't work in 2.15 that work in other emulators just fine and vice versa. Some people just don't know about other variations or the ones that even receive updates. Since there is no auto update feature in most of the emulators we all fall behind from time to time in updating our emulators, and as with anything new builds can possibly instill more problems in different sections of the emulator than the previous builds (everyone makes mistakes). At least we are all on the same page, now what to do about the title of this thread...

[OldSchoolGamer]

Don't let the name of the thread cloud your vision of what emulator I'm using. All of my recent hacks have been using FCEUX 2.15 (downloaded from fceux.com) unless otherwise stated on the codes. I would assume it may be a 64 bit problem or something else related. As long as these codes work for the requester then all is right with the world on my end. I have never been interested in making codes compatible with all emulators as it's a waste of time in my eyes due to each emulator being slightly different. I do agree with your point that everyone should download this from the origin site instead of any random site out there however.

If someone wants to change the name of my thread to FCEUX then knock yourself out...

My post was not directed towards you. It wasn't directed towards anyone. I was just curious as to why someone would use an older version and why someone would use a different variant of FCE** instead of the all-in-one FCEUX. The title of your thread never entered my mind. I was basically just interested in learning if there was some special reason as to why not using FCEUX 2.1.5. Maybe there was something I didn't know about as to why some people don't use it.

[Abystus]

Mega Man 3 (U) GG FCEUX

Allow Access to Any Defeated Boss Stage
AAOOGLSI

[Abystus]

I tested your codes with FCEUX 2.1.1 and 2.1.4 and I don't got your problem with the emulator's crashing on none of both versions. They make the stage select screen work as the one in Megaman 1. But I still please you to modify somehow these codes so they can be used on any version of FCEUX without any issues.

If it works for you then I'm not really that interested in digging deeper to see why FCEUX 2.15 on my end isn't working properly. I am in 64 bit Windows 7 so it may be the issue itself.

Why do people still use FCEUD and other variants of the emulator, when they can just use FCEUX which is all the variants of that emulator combined into one? Doesn't FCEUX have all the features that all the other FCE** emulators have?

Also, why do people still use older versions of FCEUX? The latest/newest release that is STABLE is version 2.1.5. It works fine for me. So why do people still use version 2.1.4? I think people run into some problems with the latest version (2.1.5) because they use the SVN versions of 2.1.5. But if they were to just use the stable version that can be downloaded from the official website, http://fceux.com/web/download.html , than I don't think they would encounter those problems they've had.

I also don't understand why people would download stuff, like an emulator, from a third party website when they can just download it from the program/emulator's official website. This way they know they aren't using an emulator that has some minor tweaks and changes than the official emulator. If you download an emulator from a third party, there is always the possibility that the emulator has been tweaked in some small way that could effect the use and cause some minor problems for the user. I just always like to download stuff from the program's official website. This way I know what I'm going to get.

Don't let the name of the thread cloud your vision of what emulator I'm using. All of my recent hacks have been using FCEUX 2.15 (downloaded from fceux.com) unless otherwise stated on the codes. I would assume it may be a 64 bit problem or something else related. As long as these codes work for the requester then all is right with the world on my end. I have never been interested in making codes compatible with all emulators as it's a waste of time in my eyes due to each emulator being slightly different. I do agree with your point that everyone should download this from the origin site instead of any random site out there however.

If someone wants to change the name of my thread to FCEUX then knock yourself out...

[OldSchoolGamer]

Why do people still use FCEUD and other variants of the emulator, when they can just use FCEUX which is all the variants of that emulator combined into one? Doesn't FCEUX have all the features that all the other FCE** emulators have?

Also, why do people still use older versions of FCEUX? The latest/newest release that is STABLE is version 2.1.5. It works fine for me. So why do people still use version 2.1.4? I think people run into some problems with the latest version (2.1.5) because they use the SVN versions of 2.1.5. But if they were to just use the stable version that can be downloaded from the official website, http://fceux.com/web/download.html , than I don't think they would encounter those problems they've had.

I also don't understand why people would download stuff, like an emulator, from a third party website when they can just download it from the program/emulator's official website. This way they know they aren't using an emulator that has some minor tweaks and changes than the official emulator. If you download an emulator from a third party, there is always the possibility that the emulator has been tweaked in some small way that could effect the use and cause some minor problems for the user. I just always like to download stuff from the program's official website. This way I know what I'm going to get.

[Unicode]

Mega Man 2 (U) GG Nestopia/FCE

Enable Doctor Wiley's Stage (Allows you to select his Icon from the start.)
AOKEZAEI

Allow Access to Any Defeated Boss Stage
AEVAZEKI

The codes above work perfectly in Nestopia but makes FCE crash for me because for some reason it doesn't recognize the compare value and writes the value when it's not suppose to. I am unsure if this is an FCEUX problem only or if it applies to all variations. If it doesn't work in your FCE give it a try in Nestopia.

I tested your codes with FCEUX 2.1.1 and 2.1.4 and I don't got your problem with the emulator's crashing on none of both versions. They make the stage select in Megaman 2 to work almost as the Stage select screen in Megaman 1. But I still please you to modify somehow these codes so they can be used on any version of FCEUX without any issues.

[Abystus]

Mega Man 2 (U) GG Nestopia/FCE

Enable Doctor Wiley's Stage (Allows you to select his Icon from the start.)
AOKEZAEI

Allow Access to Any Defeated Boss Stage
AEVAZEKI

The codes above work perfectly in Nestopia but makes FCE crash for me because for some reason it doesn't recognize the compare value and writes the value when it's not suppose to. I am unsure if this is an FCEUX problem only or if it applies to all variations. If it doesn't work in your FCE give it a try in Nestopia.

[Abystus]

Abystus, I have a question about the NES Megaman games.

In Megaman 1, when you defeat any of the six Robot Masters and you receive his weapon, you still can enter and play his stage and defeat its boss again and again. For example, when I defeat Cut Man, I still can enter in his stage and defeat Cut Man again and again. In Megaman 4, Megaman 5 and Megaman 6 games you also can press Start button and free enter in any of the eight stages after the its Robot Master is defeated and have his weapon. For example, after I'm have defeated Toad Man in Megaman 4, then I can enter in his stage again. But on Megaman 2 and Megaman 3, when I defeat any of the bosses, I have no access to his stage anymore. For example, I fight Metal Man in Megaman 2. When I go back to stage Select screen and I try to enter in Metal Man's stage again with pressing Start button, the game don't allow I enter in his stage (Metal Man's stage) anymore.

Whether is possible you can make a GameGenie codes for NES games Megaman 2 and 3 that allows after defeating the bosses their stages are remain accessible?

It may be something simple not allowing the stages to be selected. I will give it a look when I get a chance.

[Unicode]

Abystus, I have a question about the NES Megaman games.

In Megaman 1, when you defeat any of the six Robot Masters and you receive his weapon, you still can enter and play his stage and defeat its boss again and again. For example, when I defeat Cut Man, I still can enter in his stage and defeat Cut Man again and again. In Megaman 4, Megaman 5 and Megaman 6 games you also can press Start button and free enter in any of the eight stages after the its Robot Master is defeated and have his weapon. For example, after I'm have defeated Toad Man in Megaman 4, then I can enter in his stage again. But on Megaman 2 and Megaman 3, when I defeat any of the bosses, I have no access to his stage anymore. For example, I fight Metal Man in Megaman 2. When I go back to stage Select screen and I try to enter in Metal Man's stage again with pressing Start button, the game don't allow I enter in his stage (Metal Man's stage) anymore.

Whether is possible you can make a GameGenie codes for NES games Megaman 2 and 3 that allows after defeating the bosses their stages are remain accessible?