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My apologies—I've already seen your message request; let's continue the conversation on X. Once again, my apologies.

I understand; I don't have an EverDrive or an EzFlash Jr. to run the necessary tests myself. However, I'll investigate the issue with my team, and once we find a solution, we'll post an update and a reply in this thread to let you know. For now, I've uploaded a new version of the ROM under the name (For FlasCart), recompiled from scratch. Thank you for your report.

I've added a version labeled "For Everdrive" that's been patched to fix the save file issue; I hope this resolves the error you're experiencing. As a suggestion, please back up and delete the ROM and any save files generated from the previous game on your Everdrive before trying the patched version. If the error persists, please let me know.

That's it! What kind of flashcart are you using? The game's save format is often incompatible with some flashcarts, just like with the Analogue Pocket; that's why the Analogue Pocket version is included in the downloads. Let me know which flashcart you're using, and maybe I can create a patch to make it compatible with your flashcart. 

Hello, thank you for your purchase; however, I'm a little confused, since the game saves the gems separately—in other words, even if you get a "Game Over," the gems aren't lost! Please give us more details; maybe you've discovered a bug, or let us know where you've been playing the game. Some Game Boy/Color emulators can cause problems with the game.

Thank you for pointing that out; the Windows version has been removed from the downloads due to issues with that version. We apologize for the inconvenience. Please contact me via my X account so I can provide you with a Steam key, which will give you access to the Windows version. 

Thanks for your support. Don't worry if you reach "Game Over"—you'll just have to replay the level you're on, which in your case is the last stage; your gems will remain intact. I hope you enjoy the game.

¡Qué tal! Así es, si optas por adquirir el juego por itch, obtienes el ROM tanto para emulador como la versión para Analogue Pocket y se te asigna una llave para Steam donde puedes obtener la edición legacy.

Thank you, I hope you enjoy the game; we'll be giving away more Steam keys soon. 

We have now restocked the game for users who are still waiting to redeem their Steam keys.

Thank you for purchasing Cosmo Knight Zion. We apologize for the delay in providing the Steam keys; we have now restocked the game for users who are still waiting to redeem their Steam keys.

Saludos, por desgracia no, la compra de Steam no incluye el ROM para GB por políticas de Valve. 

Yes! Purple and blue Jason is now available. Well, almost. xD

Muy agradecido por el apoyo y los comentarios. :) 

Here’s a little secret: the game was originally developed in Spanish. However, the language-switch option didn’t make it into the final version—maybe it’ll come in a future update. A few bits of dialogue were still left untranslated.

Thank you for taking the time to comment! I’m glad you’re interested in this remake for the Game Boy Color. The idea was to rescue the atmosphere of the original and make it more enjoyable.

Thanks! I really appreciate it.

Thank you so much for the video, your support, and for playing; I'm glad you're enjoying the game.

Thanks for the message. In the current version, the image has been updated when the game is loaded into a GameBoy DMG file, so it should now display correctly.

In the first version, there was a bug that prevented players from defeating Jason inside the cabins. As you mentioned, please check to see if you have the latest version, which is 1.0.1 R3. If the problem persists, please leave me another comment. Thanks for playing.

Try using a different Game Boy core, since as far as we know, the Gambatte core has some issues when emulating GBStudio games, especially with the sound. 

Thanks for the comment—a Nightmare on Elm Street version would be interesting, haha. You can report any bugs by sending a message to my X account @ZeichiGames.

Which GameBoy Core are you using? Try using the SameBoy core; we've tested the game with that one.

Gracias por el apoyo a Cosmo Knight Zion.

Aunque estoy trabajando en ella, no puedo progresar tanto como quisiera debido al tiempo y a las obligaciones. Sin embargo, gracias a quienes apoyan este y otros proyectos míos y me motivan en mis redes sociales, puedo dedicarles aunque sea poco tiempo para seguir adelante.

El honor sería todo mío, puedes contactarme si quieres a través de alguna de mis redes sociales que encontrarás en los enlaces de este sitio. O bien este linktree:  https://bit.ly/m/Zeichi 
¡Saludos!

Yes, but only within the executable version for Windows.

Saludos, en la campaña de Kickstarter se crearon ediciones físicas, y algunas de ellas estarán disponibles en el futuro en cantidades muy limitadas a través de nuestro distribuidor. Más adelante se anunciará dónde podrán encontrarse estas ediciones limitadas.

Saludos, oficialmente ya tenemos fecha: será el 29 de octubre de 2025 en formato digital.

Muchas gracias, ¡¡excelente referencia!!

Saludos, me alegra que te guste este fangame. Actualmente estamos trabajando en el lanzamiento de un nuevo juego llamado Cosmo Knight Zion, que saldrá a finales de año. Este juego está inspirado en Saint Seiya y busca rendirle homenaje, utilizando el motor de este fangame como base. Cosmo Knight Zion puedes probar el demo, en cuanto a este fangame estoy trabajando en una actualización que espero pronto esté disponible de manera gratuita. 

You are absolutely right, I completely forgot to add the lock for DMG. I will add it in the next update. Thanks for reminding me.

Thanks for the report! I will make some adjustments to mitigate or even eliminate the bug.

Thank you very much, we continue working on this game, new original music is being created for it.

Thanks for the video, there will be more news soon.

Thank you for your kind words! We're glad that you think our work is competent and we appreciate your support. We'll keep working hard to make the game even better. Thanks for playing!

Thank you so much! I'm thrilled that you are enjoying the game and appreciate your feedback. We were definitely inspired by classic games like Ninja Gaiden and Ghosts & Goblins, and we're glad to hear that the gameplay has a cool Shinobi vibe. Thanks for playing and sharing your thoughts!

Thank you so much! I'm glad you like it! We are working hard to bring a great gaming experience.

Thank you very much. It was an interesting decision to want to take advantage of the already created game. The project is progressing very well and is becoming something totally different from the original fangame. I really hope you like this new project.

¡Gracias! espero este nuevo proyecto sea tan genial o mejor que el pasado.