The 2009 world champions had already booked the qualification to the next round of the championship before Saturday's last group game, having amassed vital three points in their first game against archrivals Nigeria.
Ghana coach Abdul Karim Zito made five changes to his starting line-up for Saturday's game, bringing on Alhassan Uzair, Ivon Anokye, Huda Issah, Emmanuel Agyemang Duah and Abanga Sumaila who took the place of suspended lead striker Precious Boah.
In the end, it was N'Guessan's free-kick that proved the all-important factor, his side finishing top of Group B to set up a meeting with Burkina Faso in the semi-final.