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About This File

Very happy to finally be able to share the first full Pokemon Colosseum QOL and difficulty ROM hack to date!

Grand Colosseum not only acts as a difficulty hack to one of the hardest pokemon games out there, but brings a host of QOL changes, including but not limited to

. Physical/Special split

. Fairy type

. 65 New moves

. Stat/type/Ability updates and changes (In line with Drayano's hacks)

. Revamped TM list with 8 new TMs

. Infinite TM use

. New shadow encounters

. Gym themed Colosseum battles

. Higher difficulty

. Alolan Ninetales and Marowak

. Paldean Tauros

, Different versions based on which set of starters/legendario trio you want

. Ability to access the PC anywhere by pressing R

.Revamped UI

 

Patreon for anyone who wants to support me here https://www.patreon.com/kya_colosseum

 

Head on over the the gamecube pokemon hacking discord https://discord.gg/aucXehNbwM to shout at me about anything I might have missed.

 

Must give a massive shoutout to Stars who has helped me throughout this process, and who without his tools I'd have not even managed to turn a Zigzagoon into a Linoone. Would also like to thank FanficPheonix, mikeyX, Brawlersinthezone and Lan for their contributions as well, couldn't have done it without you guys!

There are plenty of other features I'd love to bring to this project in the future, so anyone knowledgeable in the ways of coding who wants to work on a project like this please get in touch!


How to patch

Download either the Johto, Kanto, or Hoenn version of Grand depending on which set of starters and legendaries you want to catch and play with

Apply the patch file to a clean Pokemon ColosseumISO using any UPS patcher. This patch was made for the NTSC (US) version so it will not work on other versions. The iso is quite large so it may take a few minutes.

Always patch onto a clean ISO, even if you are applying an update.

When patching make sure file isn't a nkit file. If it is, please note that the patch will not work and you will need to convert the file into an ordinary ISO, or source another ISO.

Recommend using a fresh save for all the features to work properly

Make sure to use the nuzlocke patch after you've patched it using the main patch

Edited by Kya
New Version


What's New in Version 3.1   See changelog

Released

Main changes for 3.0

. Access the PC box from anywhere, meaning you can finally after 20 years save wherever you are

. New UI to show whether a move is special or physical

. Paldean Tauros is now in the game!

. A nuzlocke mode where rare candies are purchasable from Pyrite for 1$ and purification is pretty much instant

. A host of other small balance tweaks and changes to make for a smoother experience overall, including increasing the exp yields of most Pokemon

All changes can be found within the documentation in your downloads

3.1 changes

. Added level up movesets in pokemon stats folder

.Fixed end game Wes fight

.Added Patreon trainers to Mt Battle

.Fixed some AI issues


WARNING: DO NOT save in front of Rui when she's inside her sack and then quit the game. You'll softlock yourself and nobody wants that. For safety I also wouldn't try it when Vander is on the floor in Mt Battle.

  • Like 1

User Feedback

Recommended Comments



Zhain92

Posted

I really like the work you've done with this mod, but by any chance would you be able to make it work with the PAL version of the game

Gregbraaa

Posted (edited)

Finnaly got it to work 

Edited by Gregbraaa
VileGutterChild

Posted

I've been missing 100% accurate moves not in sandstorm/vs sand veil or having any other accuracy drops. Moves I've noticed this on are leaf blade and signal beam. Am I missing something? 

terminator1984

Posted

Is there any chance of merging your mod with this patch?

https://www.romhacking.net/hacks/6141/

Basically a simple model swap to replace Rui with the Uncensored Japanese model. You already changed the textures on her model for the latest update, so I don't think this would be a big ask, especially if you offer it as an optional patch, like you did with the various region starter editions of the base mod.

  • Like 1
Aicle

Posted

On 10/26/2023 at 5:11 PM, terminator1984 said:

Is there any chance of merging your mod with this patch?

https://www.romhacking.net/hacks/6141/

Basically a simple model swap to replace Rui with the Uncensored Japanese model. You already changed the textures on her model for the latest update, so I don't think this would be a big ask, especially if you offer it as an optional patch, like you did with the various region starter editions of the base mod.

You ever figure out how to get those mods to work together? Cause I can't stand looking at this mods god awful Rui edit.

terminator1984

Posted

On 11/22/2023 at 8:21 PM, Aicle said:

You ever figure out how to get those mods to work together? Cause I can't stand looking at this mods god awful Rui edit.

Yeah. Download that mod I linked and look in the readme file, it lists the folders you will need to change. Simply find a way to import JP Rui data over to Grand Colosseum and everything should work fine. I would bring over the title screen as well just to check if it worked successfully.

Here's a caveat: This works for everything BUT the cutscene where Rui is initially taken out of the sack at the beginning. You will see her in the GC jacket for a split second, but once the cutscene ends and you go back to the overworld, she should look fine(that includes her model when she sees a Shadow Pokemon). I could not find a way to change the cutscene at the start, but for everything else it should work fine. 

  • V-Wheeeeeel!!! 1
KayleeSelena

Posted

so for whatever reason. i cant for the life of me figure out how to properly patch this. it says its patched then dolphin has a meltdown trying to play it. shows a ton of error messages and wont play the rom

marcelbruer

Posted (edited)

I'm having an issue with this hack: I got all the way to the end of the game where you fight your clone but he doesn't appear in the battle or send out any pokemon and the fight ends after one turn, leading to the image linked. I can't beat the battle or capture the final shadow pokemon. Is there any way around this?

 

https://imgur.com/xhriJTu

Edited by marcelbruer
Kya

Posted

On 2/26/2024 at 1:24 AM, marcelbruer said:

I'm having an issue with this hack: I got all the way to the end of the game where you fight your clone but he doesn't appear in the battle or send out any pokemon and the fight ends after one turn, leading to the image linked. I can't beat the battle or capture the final shadow pokemon. Is there any way around this?

 

https://imgur.com/xhriJTu

Hey! If you download the newest version 3.1 the issue is fixed there :)

  • Like 1
marcelbruer

Posted

On 2/28/2024 at 7:05 AM, Kya said:

Hey! If you download the newest version 3.1 the issue is fixed there :)

It works great now, thank you!

duelfreak

Posted

On 11/11/2021 at 10:50 AM, Kya said:

Is it a nkit file? as if so you need to put it through a program you can find over on Vims lair in order to turn it back into an ordinary ISO :)

 

Let me know how it goes!

what program are you referring to? ive been looking and cant find anything that mentions converting nkit/cISO to ISO's

Mochii

Posted

Hi thanks fpr your effort to revive this awesome game and make it even better :)

Since I want to start the new nutzloke mode I'd like to know, if you are able to play the game without the type changes you implemented?

The idea is nice but I'd like to play with the original types this time.

Westrada

Posted

Just played through this. So much fun! If I could add only one thing, it would be nature mints or some other way to change the nature of already captured mons. I found a wonderful set of AR codes to change the natures of all newly generated trainer pokemon. I implemented it about halfway through my playthrough after getting a -spatk Suicune. Unfortunately, it is very tedious.

I guess if I could see anything else, I'd want Protect and Helping Hand available from as early as Phenac. At least by Agate.

Also, for some reason, I don't think thick fat properly triggered on fire type attacks aimed at tropius?

LordRoldemort

Posted (edited)

Hi, Ive been playing this with the Johto 3.1 Nuzlocke patch, and when fighting against Rider Vant, anytim his Linoone uses Headbutt the game freezes with "Invalid read from 0x800a11bc" Idk if this is an issue with Dolphin or if Ive patched wrong or what, but I would really love some help if anyone can. Thank you in advance!

Edit: upon testing, this is anytime any pokemon uses Headbutt

EDIT 2: Turns out this was because I didnt patch an ISO file, i patched an rvz file or whatever that is. My fault. Thank you so much for making a great rom hack!! Leaving this though just incase anyone is as dumb as I am

Edited by LordRoldemort
Moshesus

Posted

Hello, got the game patched and running fine awesome work. I'm still right at the start and am just casually exploring this game from my childhood :D. I went to the pokemon center in phenac right after freeing rui. when I went to explore the basement dolphin crashes consistently every time I go down the stairs. Im not missing out on anything down there right? Either way I figured I should say something in case anyone else has this issue. Keep up the great work on the mod. :)

 

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Example2.PNG


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