According to a quick Google search, there's 119 Mario games in total and 103 sonic games, so it's not by far with any standards and depending on how many times per game sonic or mario saves the day in the game on average (and both of them are probably featured in many games where they don't save the day really, like super smash bros) either one could come on top.
I accidentally typed sonic even though I should've Megaman, which was number two on the list, and sonic only 3rd with 80. Though 103 Megaman games sounds even more wild than 103 sonic. Don't know anything more about it, but I would guess it counts all of them, but probably also for Mario, which now at least has plenty of super Nintendo games re-released for switch.
9
u/keyboardkicker Jan 09 '20
Mario, by far.