A late deflected goal from Sunday Mba was enough to give Nigeria the victory over a much-fancied Ivory Coast side who failed, yet again, to live up to expectations.
Emenike's stunning free-kick had given the Super Eagles the lead shortly before the halftime interval. But just after the break, Newcastle's Cheik Tioté headed home to tie the game at 1-1.
It was looking like extra time before Mba, who'd offered little in the game up to that point, found just enough space between defenders to get a shot away and put his side into the semifinals.
Nigeria look to be a team on the up.
Ivory Coast and their star-studded squad failed once more.
Here are six things we learned from Sunday's game.