We could have had a two phase battle against Eggman or Wily, with the first being them in a big machine and the second having them take a more evasive approach in the Eggmobile/Wily Capsule. When I put it that way it does sound like it'd be redundant to have both of them, but there's probably a way to make them unique. But both series also have plenty of others to offer, like Chaos, Sigma, some fortress boss or another, etc.
And in the unlikely event they decided, "let's have something from a Final Fantasy game other than VII", bosses would be a good place to start. No specific examples immediately come to mind, but the series has been going on long enough to have all sorts.
I could sit around all day adding ideas to this, but I think I'll just stop with Mother Brain's full body form from Super Metroid.
And in the unlikely event they decided, "let's have something from a Final Fantasy game other than VII", bosses would be a good place to start. No specific examples immediately come to mind, but the series has been going on long enough to have all sorts.
I could sit around all day adding ideas to this, but I think I'll just stop with Mother Brain's full body form from Super Metroid.