Hi piccolodmq,
I can help you with the task.
I am able to transform a tilemap creating a level editor for your game.
I have also created a video tutorial about it:
The project is really interesting, but I have to advise you that without having the rights for each IP, you might face troubles, even if releasing the game for free. My suggestion would be to use similar characters having the same mechanics and avoid legal issue.
For example, Nintendo is very protective of their IPs.
I am currently working on my games and do freelance job with C2.
Feel free to contact me via PM so we can discuss more in details about your project.
Thank you,
Simone