ROM Hack Discussion Animal Crossing: New Horizons -- Reverse Engineering, Glitches, Bugs, etc. thread!

DarkAzyx

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I have generated these. Feel free to use them!

Code:
[14x Cherry Blossom Recipes]
08100000 AC4723D0 000001AA 000016A2
08100000 AC4723D8 00000177 000016A2
08100000 AC4723E0 00000276 000016A2
08100000 AC4723E8 00000275 000016A2
08100000 AC4723F0 00000219 000016A2
08100000 AC4723F8 000001E0 000016A2
08100000 AC472400 000001FF 000016A2
08100000 AC472408 000001A3 000016A2
08100000 AC472410 000001A2 000016A2
08100000 AC472418 000001DF 000016A2
08100000 AC472420 00000141 000016A2
08100000 AC472428 00000289 000016A2
08100000 AC472430 000001AB 000016A2
08100000 AC472438 000001A6 000016A2

[Star Fragments + 22 Star DIY]
08100000 AC4723D0 000000EC 000016A2
08100000 AC4723D8 000001B2 000016A2
08100000 AC4723E0 000000E9 000016A2
08100000 AC4723E8 000001E2 000016A2
08100000 AC4723F0 00000182 000016A2
08100000 AC4723F8 00000175 000016A2
08100000 AC472400 000001DE 000016A2
08100000 AC472408 000000EA 000016A2
08100000 AC472410 000001AD 000016A2
08100000 AC472418 00000199 000016A2
08100000 AC472420 0000017B 000016A2
08100000 AC472428 000001DD 000016A2
08100000 AC472430 00000124 000016A2
08100000 AC472438 0000017D 000016A2
08100000 AC472440 00000202 000016A2
08100000 AC472448 00000274 000016A2
08100000 AC472450 00000273 000016A2
08100000 AC472458 00000126 000016A2
08100000 AC472460 000001AE 000016A2
08100000 AC472468 0000011E 000016A2
08100000 AC472318 000001B0 000016A2
08100000 AC472320 00000009 0000175F
08100000 AC472328 00000009 0000175F
08100000 AC472330 00000009 0000175F
08100000 AC472338 00000009 0000175F
08100000 AC472340 00000009 0000175F
08100000 AC472348 00000009 0000175F
08100000 AC472350 00000009 0000175F
08100000 AC472358 00000009 0000175F
08100000 AC472360 00000009 0000175F
08100000 AC472368 00000009 0000175F
08100000 AC472370 00000009 00001760
08100000 AC472378 00000009 00001760
08100000 AC472380 00000009 00001760
08100000 AC472388 00000009 00001760
08100000 AC472390 00000009 00001760
08100000 AC472398 00000009 00001760
08100000 AC4723A0 00000009 00001760
08100000 AC4723A8 00000009 00001760
08100000 AC4723B0 000000EB 000016A2

[120x Zodiac Fragments + 12 DIY]
08100000 AC4723D0 0000016F 000016A2
08100000 AC4723D8 00000180 000016A2
08100000 AC4723E0 00000179 000016A2
08100000 AC4723E8 00000173 000016A2
08100000 AC4723F0 00000197 000016A2
08100000 AC4723F8 00000084 000016A2
08100000 AC472400 00000170 000016A2
08100000 AC472408 0000017C 000016A2
08100000 AC472410 00000178 000016A2
08100000 AC472418 00000172 000016A2
08100000 AC472420 0000016E 000016A2
08100000 AC472428 0000018F 000016A2
08100000 AC472430 00000009 00001764
08100000 AC472438 00000009 00001765
08100000 AC472440 00000009 00001766
08100000 AC472448 00000009 00001767
08100000 AC472450 00000009 00001768
08100000 AC472458 00000009 0000176A
08100000 AC472460 00000009 00001769
08100000 AC472468 00000009 0000176B
08100000 AC472318 00000009 0000176C
08100000 AC472320 00000009 00001761
08100000 AC472328 00000009 00001762
08100000 AC472330 00000009 00001763

[7x Golden Tools DIY]
08100000 AC4723D0 00000297 000016A2
08100000 AC4723D8 00000292 000016A2
08100000 AC4723E0 00000293 000016A2
08100000 AC4723E8 0000021B 000016A2
08100000 AC4723F0 00000294 000016A2
08100000 AC4723F8 00000296 000016A2
08100000 AC472400 00000295 000016A2

[17x Golden Items DIY]
08100000 AC4723D0 00000283 000016A2
08100000 AC4723D8 0000012A 000016A2
08100000 AC4723E0 00000236 000016A2
08100000 AC4723E8 00000051 000016A2
08100000 AC4723F0 00000284 000016A2
08100000 AC4723F8 000001CC 000016A2
08100000 AC472400 000001C1 000016A2
08100000 AC472408 0000025A 000016A2
08100000 AC472410 00000082 000016A2
08100000 AC472418 00000239 000016A2
08100000 AC472420 00000083 000016A2
08100000 AC472428 00000259 000016A2
08100000 AC472430 000001DB 000016A2
08100000 AC472438 00000253 000016A2
08100000 AC472440 00000085 000016A2
08100000 AC472448 00000106 000016A2
08100000 AC472450 0000012B 000016A2
I'm very new to this, i saw the tutorial for the cheats, but how do i exactly use these? Do i add this code to the cheats text file? and then how do i use them ingame? I know this may be a dumb question, but i'm pretty lost here :(
 

Courtesybog826

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Hi, i used a cheat for
paintings and sculptures but i think one is missing; of you visit the Museum there is an empty space in the right near the “amorous Picture” ; does Anyone have the id items?
 

YamiYami

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Regarding NHSE, few pages ago i saw
1. Question on items colour variants,
2. Question on how to activate the deep in thought emotion on villagers to move them out/

Solution
1. I think i mention before, NHSE colour Variant is at count. Flag0: is for secondary colour at times, Flag1: is the method of obtaining the item (e.g present/from digging/from mailbox etc. Most items like Imperial items that can't be customised your count = 0 for original colour, 1-9 should give you most of the colours you can find in Nookplaza.net

For some items that are customizable e.g Futon/Kotatsu/Giant Teddy Bear you might want to customise ingame and get the count number using NHSE because the numbers varies alot, like count 30-100/200-300 which one wouldn't tries to edit so many storage boxes for the right combination.

2. In the latest NHSE versions, Open a save file of 10 villagers, go to villager tab and check moving out option, it will prompt you to edit flag24 to 1 and you're done. Restore the game using JKSV and load ACNH you will find the villager is already packing the boxes, this is the time you want to use another legit account to grab this imported villager.

--------------------- MERGED ---------------------------

Hello, yes, i did, since it's the app i use for extracting and dumping the save files, and without restoring the editing won't have any effect

Do you still have the issue of NHSE edited file not loading in the save? if you still encounter the issue of edited file is not updated in actual game, i suggest you try to feedback to NHSE developer.

Steps of NHSE editing.
1. Use NHSE open the Main.dat file in SD location with all the subfolders e.g Villager0/postbox.dat etc
2. Edit and save what you amended, NHSE will prompt out a dialouge box that save is done
3. Load the SD card in your switch
4. Restore the edited data using JKSV
5. Open ACNH game and all edited data should be working.
 
Last edited by YamiYami,
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ramax

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I'm very new to this, i saw the tutorial for the cheats, but how do i exactly use these? Do i add this code to the cheats text file? and then how do i use them ingame? I know this may be a dumb question, but i'm pretty lost here :(
Yes, add this text to the file : 20ca968c08211c2.txt

You need to install Tesla Overlay and Edizon ( overlay version )
 

MagicMan2k

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Does anyone else's switch fan just start running full speed playing animal crossing? Not sure if it's normal or if it's teslamenu or something or my switch is just old or what.

Yes very normal, both my switches run at full speed while running AC - I think the newer switch doesn't though.
 

Waip

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I was curious if the original code could be adapted to make any flower currently in Slot 1 to be set as ready to breed and watered? Retaining their original flower type and genetics.

This code will make flower in slot #11 golden sparks and 100% breeding/cloning. It will not change natural genetical data.

[Slot 11 golden sparkles flower]
02100000 AC472425 000083EF

Please note that you have to activate/deactivate with a flower in slot 11 and not leave it activated, otherwise it will mess up the code of empty slot 11 when you plant the flower, potentially messing your save
 
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Waip

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ooh thanks! :D though i can almost guarantee someone will not follow those instructions. but that's none of my business ;)

Well I have to put a disclaimer... I don't know how the game handles messy RAM, probably it just erases it but I don't want to be held responsible ! Using this code with something other than a flower in slot 11 could be really nasty.
It's like those "slot XX item x30" codes, if there's no item there or an item that cannot be stacked, it messes up the code pretty bad !
 
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Mopquill

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This code will make flower in slot #11 golden sparks and 100% breeding/cloning. It will not change natural genetical data.

[Slot 11 golden sparkles flower]
02100000 AC472425 000083EF

Please note that you have to activate/deactivate with a flower in slot 11 and not leave it activated, otherwise it will mess up the code of empty slot 11 when you plant the flower, potentially messing your save
Worth adding a button activator to it, then? :O
 
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Waip

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Yes OMG you're absolutely right, I've never trifled with those but it would be much safer that way

Maybe our Lord and Savior™ AnalogMan can give us a help with it ?

There it is, I just learned from the Master:

[Slot 11 golden sparkles flower L+left stick press]
80000050
02100000 AC472425 000083EF
20000000
 
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munkie

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This code will make flower in slot #11 golden sparks and 100% breeding/cloning. It will not change natural genetical data.

[Slot 11 golden sparkles flower]
02100000 AC472425 000083EF

Please note that you have to activate/deactivate with a flower in slot 11 and not leave it activated, otherwise it will mess up the code of empty slot 11 when you plant the flower, potentially messing your save

Thank you!
 

Mopquill

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There it is, I just learned from the Master:

[Slot 11 golden sparkles flower L+left stick press]
80000050
02100000 AC472425 000083EF
20000000
You can always generate button activators with my generator, and then just swap out the code/title. The activator part is the line that starts with 8, and the conditional end is the line that starts with 2.

On a related note, I just did a huge update to my generator: https://mpql.net/tools/acnh/codes/

EDIT: Update details:

Okay, super big update to the generator: https://mpql.net/tools/acnh/codes/

  • Added dropdown menu for items (!)
  • Added decimal/hexadecimal item ID input option
  • Added option to have 4-byte cheats
  • Made it possible to generate cheats for just item quantity or durability
  • Added detailed update information on hover update date
  • Using bootstrap for some style elements

I may add in 2-byte/1-byte options later? I know Atmosphere supports them, and I have a pretty good guess of how they're formatted. I think it's something like:

Code:
[Slot 1 Durability (1.2.0)]
01100000 AC4723D6 000000xx

[Slot 1 Custom (1.2.0)]
01100000 AC4723D5 0000xxxx

for a 1-byte and 2-byte respectively. If anyone can confirm or correct me, I'd appreciate it. :D
 
Last edited by Mopquill,

Cortexfou

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I'm banned so I can't have the friend app and the nook miles to visit and invite friends. Is there a way to trigger the app unlock event with a cheat or with the save editor ?
 

DocKlokMan

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Guys, let me start by saying I've been researching RAM flower attributes for the last three days both in inventory and on the ground
Genotype, visitor watering, gold sparkles, golden can bit, we got it all figured out

You have the right ideas but are mistaken on a couple of points
Your genotype is off: the hex pair that codes the 8 bits for the genotype goes in this order: SSWWYYRR
Black rose is 03 for example
Purple tulip or hyacinth is 0F
White tulip is 10

Also While you are right on the rough position of the days without breeding, it's actually coded on 5 bits and then it's the beginning of the visitor watering table

10 bits are are bitmap of visitor watering, last one is for rain/villager/own watering (the 80 you found)

The 80 watering marker is correct but only for a flower that has been dug up and replanted the same day ; you will never have in a legit fashion a flower with this bit and a counter of days without breeding

This has to do with the game handles rain and watering

You want a gold sparkling flower ? set its attribute to 0083E0XX in the inventory and plant it (XX is the genotype)

You want a flower that will reproduce the next day ? set it to 0003EFXX and water it yourself

Don't dig them up or all the attributes are wiped

By the way, the game doesn't mind "GMO" like a white tulip with a OF genotype. It will happily reproduce and give purple tulips.

Last point: I don't recommend changing attributes in the ground, the game does not appreciate because of how many replications of the same flower code there are (half tiles and whatnot)
Can you give me a 33 bit break down?

Something like:
Code:
A(0000000) B(0) C(0) D(0000000000) E(00000) F(00) G(00) H(00) I(00)

A: Unused
B: wasGoldWatered
C: isWatered
D: visitorsWatered
E: daysWatered
F: SS
G: YY
H: WW
I: RR
 
Last edited by DocKlokMan,

Taishiro

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For some items that are customizable e.g Futon/Kotatsu/Giant Teddy Bear you might want to customise ingame and get the count number using NHSE because the numbers varies alot, like count 30-100/200-300 which one wouldn't tries to edit so many storage boxes for the right combination.
If you want a customizable item to have a custom design.

For example, the futon has these default variants you can buy at nook's cranny:
00 is red -original design-
20 is blue -original design-
40 is orange -original design-
60 is green -original design-

Notice how these are all even numbers.
Custom designs go like this, with odd numbers:

10 is custom design 1
30 is custom design 2
50 is custom design 3
and so on

(These are all hexadecimal! convert them to decimal if you want to use them in NHSE)
 
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