Tronlet said:
Carrotlord, do you mean that Nicalis and Pixel have legal rights to the concept of a 2x resolution mod at all, or just that making a mod with the CS+ graphics would not be legal?
Okay... now I see why my original post was kinda confusing. Let me clarify.
Possibility #1 - Remaking the original Cave Story with 2x graphics and giving it to people for free (Not allowed)
You want to make a double resolution version of the original Cave Story. You somehow manage to get a copy of Noxid and GIR's double resolution hack, and you replace all the regular graphics with new 2x graphics. You either make these new graphics by hand or steal them from Cave Story + / Wiiware Cave Story.
In this case, you did not change the storyline or do any significant modding. You just replaced the graphics. Now you are cutting into Pixel's and Nicalis's revenues because they are making less money from Wiiware Cave Story and Cave Story+. You just gave out a copy of Cave Story 2x for free.
(This idea works in theory but not in practice. To use the 2x res hack, some NPCs must be deleted. The game will break somewhere in the middle. Unless you know ASM and are willing to optimize the code, you cannot feasibly make a 2x res version of the original Cave Story)
Possibility #2 - Turning a custom mod into a 2x res version (this is allowed)
You make your own mod. This mod is a sequel to Cave Story and has lots of new features. You put in your own graphics and your own storyline. You have a bunch of new maps and you changed the damage of the weapons. The items have different names and graphics too, and they are used for different things.
Now you ask Noxid by email or PM for a double resolution upgrade. He agrees and gives you back your mod, but with a double-resolution executable. You now remake your graphics in the new 2x res style. Some of the graphics in your new mod are leftover from the original Cave Story, but it's okay to make them 2x res because your mod does not resemble the original Cave Story very much.
In this case, you are doing nothing wrong. Your mod is unique and does NOT follow the original Cave Story plotline. This means when people download your double resolution mod, they are not playing double resolution Cave Story but a unique game based off of Cave Story. Therefore, people will still pay money for Cave Story+ and Cave Story for Wii.
For the terms and conditions associated with making a custom 2x res mod, you should see Noxid's
application for resolution upgrade.