Well, I've managed to get this far with what I learned. I wanted to replace the opening of Kirby Planet Robobot with a different video entirely. The video was a .moflex I extracted from a regular .cia of it, but I doubt that should matter as it ran perfectly fine when using the MobiclipDecoder. I simply dragged it to the decrypted game's mov folder and replaced the old Opening.moflex with it, and after installing it and booting up the game, once I reached that point the game kicked me back to the home menu with "An Error Has Occurred". Is there anything I can do, or do we simply not have the ability to do things like this yet?