Parallelism? Questions? I have some... 😅 (Mario & Luigi and Sonic's villain compare)
Just look:
Zavok & Bowser both externally looks like devils and they are comical;
Dr. Eggman & Fawful both an evil manipulative scientists and they are strange and comical;
Mephiles The Dark & Dark Bowser with Dark Star Core both at the peak of their forces;
Base Mephiles & Base Dark Bowser both become in dark versions of protagonists who was a villain in another games;
Eggman Nega & Dark Fawful is like Eggman & Fawful but more evil and dark;
Gerald Robotnik & Cackletta both connected to the pasts of Eggman & Fawful;
Liquid Mephiles & Dark Star both in future become in a dark versions of protagonists who was a villain in the another games.
Seriously, I have questions to AlphaDream and Sega, did they're was cooperated on creating characters for each other?
P.S. Discussion Idea and text my own, no help of AI.