So Mighty Gunvolt Burst was released for PC...

[GigaX]

and I've wanted these sprites ripped for quite a while. Now that the game files are right there in front of me, they just need to be decrypted. However, I have no idea how to do that.

In the game's root folder, there are 40 .bin files, labeled GamedataXX.bin from 00 to 39. These are no doubt the save files. In the Data folder, there are 493 files, all with gibberish names and no filetype; likely encrypted, somehow. In the DataAddon folder, there are eight files, all with gibberish names and no filetype, and I am certain that these are the DLC files, containing the non-Beck and non-Gunvolt character data, and the modified enemy positions. I don't imagine there's some easy way to go about this, but I'm all ears, and out of ideas before even starting. I can send over any file anyone wants to look at, though.

[Deathbringer]

Going by how I ripped Blaster Master Zero and tried to do Bloodstained Curse of the Moon, you just need to use Ninjaripper with the d3d9wrapper on the game itself. Once you activate it in-game, it dumps a lot of textures and or palettes as they are loaded in the game.

[GigaX]

Thank you for introducing me to that tool, Deathbringer. A bit of poking around on the ol' search engine got me the GIMP plugin I needed to view and edit .dds files, which is what Ninjaripper spat out for me. I'll spend a day getting the rips as ready as I can, some time soon.

[Simpsons Dumper]

Have yoi not been doing your updates? GIMP 2.10.10 and newer has native DDS support.