itch.io

Hello! Yes, this plugin currently gets its plugin name dynamically from the script filename.

It uses this pattern:

const pluginName = document.currentScript.src.match(/([^/]+)\.js$/i)[1];
const raw = PluginManager.parameters(pluginName);

Then the same pluginName is also used for PluginManager.registerCommand(...).

So if Asset Protection / Source Code Protection loads the plugin through an alternate loader, or if document.currentScript.src no longer ends with the original .js filename, the regex match returns null and the plugin fails with:

Cannot read property '1' of null

Thanks!

I’m dealing with that same issue. I’m still waiting for a response on this matter.

Hello! How are you? Look, I've updated the tool to the latest version because I lost the previous version I was using, which worked perfectly fine. I don't remember which release it was exactly, but now the loading screen gets stuck in a constant loop.

My project only contains one plugin, and it's my own plugin, so it really shouldn't interfere since the problematic scene is completely independent. The issue seems to be with the program itself.

I'm sharing part of the log I extracted from the F12 console in the Test Build, but I would need to ask if you could privately send me the previous versions and builds that I know were working correctly for me.

It would be great if you could provide me with a complete list of all previous builds so I can test which one works again.

The issue is clearly related to the encryption system because if I disable that functionality, the game loads correctly. But obviously, doing that would defeat the entire purpose of the tool, since the main idea is precisely to protect the files.

Please, if possible, contact me privately at my email: "support@undermax.online"

Thank you very much!

LOG:

Loading js/libs/pixi.undermax (unknown) 
Loading js/libs/pako.min.undermax (unknown) 
Loading js/libs/localforage.min.undermax (unknown) 
Loading js/libs/effekseer.min.undermax (unknown) 
Loading js/libs/vorbisdecoder.undermax (unknown) 
Loading js/rmmz_core.undermax (unknown) 
Loading js/rmmz_managers.undermax (unknown) 
Loading js/rmmz_objects.undermax (unknown) 
Loading js/rmmz_scenes.undermax (unknown) 
Loading js/rmmz_sprites.undermax (unknown) 
Loading js/rmmz_windows.undermax (unknown) 
Loading js/plugins.undermax (unknown) 
Loading plugin: MyPlugin 
extensions::nw.Window:480 Uncaught TypeError: Cannot read property '1' of null     at <anonymous>     at <anonymous>     at NWWindow.evalNWBinInternal (extensions::nw.Window:480)     at NWWindow.evalNWBin (extensions::nw.Window:461)     at Function.loadScript (<anonymous>)     at Function.setup (<anonymous>)     at Main.loadMainScripts (<anonymous>)     at Main.run (<anonymous>)     at <anonymous>     at NWWindow.evalNWBinInternal (extensions::nw.Window:480) index.html:1 Uncaught SyntaxError: Unexpected token '<

Hello! How are you?
Thank you for your suggestion.

The problem with that is that it could create some complications with the handlers and some things might overlap, which would ruin the experience and could cause other issues.

I’ll look into it in the future, once I update the plugin, I’ll see if I can find a way to incorporate that functionality!

Best regards ^^

🩵I apologize for the wait! I'm here now ^^

I'm glad you liked it! I hope it helps and you enjoy it!
If you need anything, I'm at your disposal. 🩵
Thank you for the support! ^^

Hi! Yes, due to circumstances beyond my control, you can only use PayPal directly from Itch.io

What I can offer you is that you purchase the plugin through my website:

https://undermax.online/buy-plugins-credits/index.html

Since we have more payment methods available from there.

If there's anything else I can help with, let me know! Cheers!

Hi! How are you? I understand what you're saying. Let's do the following:

Contact me via email (through my support page) and I'll send you a link to try it out. If it works for you, you can then proceed with the purchase. Does this sound good to you? :)

Hello! How are you?
Sorry for the delay in replying.

I recommend using PayPal since it is the fastest, most direct, and most affordable method.

You can also purchase Credits for any of my plugins from my official website:

https://undermax.online/buy-plugins-credits/

And you can redeem them for any plugin you want.

Additionally, this specific plugin can be obtained thanks to our official collaboration with Gotcha Gotcha Games:
https://store.rpgmakerofficial.com/search?q=Undermax&options%5Bprefix%5D=last

Best regards!

Hello, how are you? :)

Each version brings different features and designs.

I invite you to watch the videos related to each version so you can see them in more detail, or you can also try the demo/experience versions. Please feel free to contact me with any questions! Best regards!

Hello! How are you? Thank you for your suggestion, and I'm glad you liked it! I have uploaded a new version (v1.0.2) that should add what you requested. I hope it helps! Best regards!

How are you? I'm glad you liked it! ^^ I really can't give you an exact figure, but I can offer the following recommendations:
- Avoid using too many images, and try to keep them lightweight; under 100kb is advisable.
- Try not to use too many pages; it's better to have several books, but they shouldn't be extremely long, around 3-12 pages per book should work appropriately without issues.

In these cases, trial and error is often the best way to test it out. ^^

How's it going? I'm glad you like it!

I suppose it should work properly. I recommend you try it out, and if you have any major issues, let me know and we'll see what we can do to fix it or make it right :)

Thank you for the reference image. I understand, I'll see what I can do to fix it during the week. ^^

Hi! How are you? Sorry for the delay in responding. I'm currently on vacation.
During 2026, I will be updating all my plugins. For now, I haven't been able to add that functionality, but I'll keep it in mind ^^

Hey, thanks for your suggestion!

Remember that the plugin also allows you to use custom graphics, you can insert the image you want for the outfit you want. You can simply crop the image you want manually and use that graphic as well.

Cheers!

Good morning! Sorry for the delay in responding, I'm currently on vacation.

I've tested the plugin and it's working correctly for me. Most likely, your plugin file is either corrupted or misconfigured in your project. I recommend doing a clean installation of it. You can even try it in a brand new clean project, make sure to configure everything properly.

I've attached on Itch.io a demo of the project I used for testing, and you’ll be able to see how the plugin works correctly with the plugin command.

I hope you manage to fix it soon ^^

 Cheers!

How are you? Sorry for the delay in responding, I'm currently on vacation.

If I remember correctly, the plugin doesn't have that functionality.

However, during this year 2026, I intend to update several plugins with new features, bug fixes, and other improvements. So I'll keep it in mind for the future! ^^

Best regards and happy new year!

Hello! I understand what you need. What happens is that the plugin uses the information from the Actor / Equipment that the user has equipped to obtain the information needed to open the scene and retrieve the data the plugin requires to function. I’ve updated the plugin to version ALTERNATIVE v1.1.1, which should provide you with a plugin command that might help you solve it. Keep in mind that, due to time constraints, I haven’t had the chance to do a detailed review of its functionality, so I invite you to test it, and I hope it manages to resolve what you need. 

 Sending you my best and a very Happy New Year!

Hi! How are you? I'm glad the plugin was useful to you! ^^ You can use that addition in your projects without any problem! Yes, I don't mind if you want to do it, feel free to send it via DM on my support page. I'm a bit limited on time to be able to analyze it and all that, but if you want to do it, I have no problem!

Hello! How are you? Let me tell you, currently due to Itch.io issues, I only have the option to charge directly via PayPal. Would you be interested in getting just this plugin, or are you also interested in another one or in any current promotion?

If necessary, we can coordinate directly to pay using some crypto. For that, contact me via direct message at my email inbox. You can also get the plugins through:

https://undermax.online/buy-plugins-credits/index.html

The thing is that by doing it this way, we have a different rate than the one shown on itch.io, since promotions unfortunately do not apply. Let me know which option you prefer.

How’s it going? How are you?

Well, I understand it’s a somewhat specific case. What’s hard for me is to imagine it without being able to see it clearly. If you manage to send me, via direct message on the support page, a link that includes a demo of the mechanic you’re trying to incorporate so I can replicate it in my environment, and attach an explanation of how it should behave, this will greatly help me resolve the issue you’re mentioning. It’s important for me to be able to emulate your same scenario in order to clearly understand what you need.

You can upload the demo to a download service like Google Drive and then attach the demo there so I can open it and test the plugin’s behavior from the editor.

Thank you very much.

Hello how are you? You can find all the information about licenses and terms of use on the official website:

https://undermax.online/undermax/LicenceTerms.html

Have a good day!

Hi! How are you?

 some time ago another user reported something very similar. We tried to investigate the possible cause, and I’ll share with you some suggestions that helped resolve it:

It seems the issue may be related to the Alternative Currency configuration.

Please check the following: 🔹 Use HEX color format (including the #) 

The plugin uses HEX colors, not the default RPG Maker MZ window skin color indexes (1, 2, 3, 4… 20).

Try setting the color values using HEX format (with the #).

If you’re not familiar with HEX colors, you can use this Google Color Picker to choose one easily:

Once you choose a color, go to the plugin parameters:

Alternative Currency Setup > [Array] > Text Color

and enter one HEX color per currency, for example: #fcba02 #2b72ff

📌 Additional tip reported by another user: 

“If I don’t type the size, the error occurs. If I set a number higher than 0, it works.”

So please also make sure a valid number is entered in any Size parameter.

📹 Additional Setup tutorial 

I also recorded a new setup example from scratch here, which may help:

Please try these suggestions and let me know if it solves the problem.

If not, feel free to send me the settings you’re using and I’ll help you further!

Best regards,

Undermax

In fact, I was more inspired by role-playing games; lately, I've been playing with my friends games like Baldur's Gate or Solasta, and I didn't find anything similar that was "simple" to use in RPG Maker MZ, so I thought it would be interesting to create it. I hope you like it ^^

🩵

Hello, responding to your question. In this case, it's different. What we are using are mainly HTML5 Sound features since this allows us to have multiple audio channels, which is what we needed for the plugin to work correctly. RPG Maker MZ has channel limitations, so it is handled differently :)

Anyway, I invite you to try it out and see if it works for you and is useful. If you need anything, I will try to help you.

Hi! Thanks for reaching out. Let me inform you:

At the moment, the plugin does not include functionality to detect which song or frequency is currently being played, however, this is something that could be added in a future update of the plugin.

Regarding your second question, the system currently allows you to block entire Playlists, but not individual tracks.

This means you can make the radio only play the desired station if a specific Switch is ON. Otherwise, the station will not appear in the list and white noise will be played instead.

I hope this clarifies your questions. Have a great day! ^^

Best regards,
Undermax

Hi! How are you doing? This plugin is not compatible with nor intended to be used in the battle scene, as it is primarily designed to be used in the Scene_Map. I believe you have plugins from other authors that offer this same system but focused on combat. Best regards!

Hi, how are you? I see you’re having issues with the plugin.

It could be a misconfiguration in the parameters or in how you’re using it. Or maybe a compatibility issue. I recommend using the provided demo and going through it carefully to see the plugin’s correct behavior, and make sure to watch the video that will show you how to set it up properly.

If that doesn’t work, I’ll need more information about the error, since a screenshot doesn’t tell me anything. To do that, contact me through the support page and send me a demo of the project you’re using or that’s producing the error, including all your current configuration, so I can run the appropriate tests and have the same working environment as you. That will let me analyze exactly what the issue is and provide a solution if necessary.

Best regards! 

There is no limit set, it is an array, and Rpg maker MZ is the one who handles that. At least in my case, I never got to the point where something didn't show up. 

That's great! I'm glad everything is in order ^^

Thanks for the support!

And good luck with your project! 🎊

I'm glad the problem is solved! 

Good luck with the project! ✨👍🏻

Hi! How are you? I'm sorry you're having issues with the plugin.

I've tried using the plugin with the screen resolution you mentioned and I haven't found any visual or functional errors (I'm attaching some photos).

Could you please send me a demo of the project you're using via private message so I can open it on my setup and see what issue you're experiencing?

Also, if you attach photos, videos, and more details about the problem, that would be ideal since I need to replicate the error in order to investigate and fix it.

Best regards!

How are you? Thank you very much for the support! ^^

I’m glad you liked it, and I’m sorry it’s not working for you.

You’re probably experiencing an issue with the plugin’s parameter settings.

Remember that the plugin you are referring to is this one:

https://undermax.itch.io/ultimate-gacha-minigame:

I recommend watching the video associated with this plugin that shows how it should be used, taking the example demo included in the download, and checking that all parameters are properly initialized, names are declared, and so on.

If none of this works, I suggest you send me a demo of your personal project by email at:

https://undermax.online/undermax/support.html

And attach as much information as you can, the idea is that I can open your project on my PC and see the issue you’re having (it can be an empty demo as long as it reflects the problem you’re encountering) so I can replicate it, understand the issue more easily, and find a solution. 

Best regards!

From the type of error it shows, I have a feeling it's a configuration error in the plugin parameters. Did you make sure all the parameter fields are properly initialized and have correct values? Because the type of error seems to be related to colors.

Do me a favor so we can solve this quickly:

Contact me via direct message: https://undermax.online/undermax/support.html

And send me a copy of the demo (one that I can open with the RPG Maker MZ editor) of the project you're using with the current configuration. That way, I'll be able to open it on my setup to run more specific tests and we can resolve this more quickly.

I'll be waiting!

How are you doing? I need to investigate the problem a bit more in depth. Please contact me by email and attach a video or a demo of the project you’re using (including all the project files along with its configuration) so I can open it on my setup and more easily detect the problem, perhaps that way I can identify the cause of the issue. For that, please contact me at:

https://undermax.online/undermax/support.html

And send me everything required via Direct Contact.

 Regards!

How's it going? Hello. I'm sorry you're having issues with the plugin. I need more information about the error: When it occurs, whether the error happens in the project demo, please provide the full console log (F12) from the console, the circumstances in which it occurs, your device information, and anything else relevant. Once you can provide this, I’ll be able to help you further. You can also attach a video showing the error so I can see what’s happening; that would be a great help. Regards!

Hi! How are you? Thanks for your message and support! 👍🏻

Well, it’s really strange. The animation should work properly. I’ve tested it and it works correctly.

I recommend using and copying the configuration included in the project demo that comes with the plugin download, so you can confirm there that the plugin displays correctly :)

I generally set both database fields to 1280x720 because I like how it looks at that resolution! 

Cheers!

At the moment, there are no updates scheduled for this plugin.

Using variables is the best option since it’s the most flexible way to do things and makes them easy to use for both programmers and the game developer, which is why it’s usually done this way.

If I update the plugin in the future, I’ll keep that in mind :)

Have a great week!