Hi, this is my first post here and I hope I'm doing this right. Feel free to let me know if I'm not.
A few weeks ago, a friend of mine was marathoning Choujin Sentai Jetman. We talked about stuff we liked from the show and got around to talking about it would have been neat if Commander Aya Odagiri got to be a sixth ranger. I designed a look a suit based on the idea and even went so far as to make a whole sprite sheet for her for the Jetman game.
My request is would there be anyone here who knows how to add a character to an NES game like this? Or even replace a character?
There would be some slight differences with her character that I figure might be a bit more difficult than a color swap. The idea would be that instead of just having one weapon, she would be able to scroll through the sword/knuckle/blaster. She would also have a hoover/double jump as shown in the last three sprites in the sheet.
Beyond pixel art, I have no technical skill of my own, so I know this is a big ask, but I'd like to see if this is possible as a gift to my friend.