Only Sonic 2, 3+Knuckles, Spinball kind of, Adventure 2, the GBA trilogy, never beat Heroes because it was awful, and I don't even remember the end of Rush and couldn't play Rush Adventure* because of the horrible fucking cutscenes so not ALL of them.
And it's just the last boss for the most part. Not a whole ADVENTURE.
This game is going to be awful, isn't it?
*This is where I stopped playing Sonic games so I don't know about any games after that.