Sage, next game or thereabouts: Sonic, I'm afraid I can't tell you about the final boss.
Sonic: Sage. What have we told you about not telling us things?
Sage: Uhhhh
Eggman: Yeah, look, Sage, sweetie! You need to actually tell us what's going on. Or at least me. I mean the entire time we were on the Starfall Islands, I didn't even know the End existed!
Sonic: See? Your dad din't even know the End existed!
Sage: Okay but I can't let the player know before it's time!