The gameplay battle design would be a circular battle model.
DeviantArt:
https://www.deviantart.com/dumbellavanderquack/art/Dumbella-Vanderquack-RPG-The-Battle-Arena-868528052
https://www.deviantart.com/dumbellavanderquack/art/Dumbella-Vanderquack-RPG-Battle-System-868528530
https://www.deviantart.com/dumbellavanderquack/art/Dumbella-Vanderquack-RPG-Battle-System-Easy-Mode-868528524
NOTE: All the sprites and backgrounds were drawn manually.
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