Talk:Luigi VS Knuckles the Echidna/@comment-30343484-20170309223526/@comment-26385028-20170314200619

Days? Weeks? That happened, like, once in Sonic Advance. In every single other game, Super Forms are even stated to run out once the forms run out of ring energy, which he can only have so much of, and it isn't going to last him for more than 6 or 7 minutes.

Also, when can he retrieve energy from the Master Emerald? He certainly NEVER carries it around with him, so that's out of the question. And INFINITE power? Never have we seen the emeralds display power like that, let alone with Knuckles.