I want to try and make my own Fossil Fighters 4 pitch. It'll likely not materialize at all, but it's still fun to think about. I do have a passion for dinosaurs & prehistoric creatures, I think they're very cool. I will try to draw as much of the roster as I can, and think of mechanics as I go. I think it would be fun if you could use vivosaurs in the overworld as well as in battle.
Fossil Fighters is owned by RED Entertainment and Nintendo. This T-Rex design is custom, but it's heavily inspired by the designs present in Fossil Fighters 1-3.