Can all of the characters be unlocked in the SSE?

[Bakemonky]

I know most of them can, but can ALL of them be unlocked in the SSE?
-Ganondorf, C Falcon, ROB, G&W?

[JT_productions829]

Yes. All characters are unlocked by beating SSE

[SFJake]

Yes. All characters are unlocked by beating SSE

3 of them are not in your first way through, you must go back in previous stages to find them.

But yeah, they all are unlocked in the SSE.