Ünal made his first appearance for City in the second half of the pre-season friendly in Australia.
The 18-year-old striker was included in the pre-season City squad that will tour Australia and participate in the Intercontinental Championship Cup.
Ünal could end up facing fellow Turkish international Salih Uçan when City take on Roma on on 21 July at Melbourne Cricket Ground.
Ünal became City boss Manuel Pellegrini’s first major signing of the transfer window and is reported to have joined for a £2 million fee.
The former Bursaspor striker also became the youngest player ever to score in the Süper Lig in 2013 and already has seven first team goals for the Green Crocodiles.
Ünal became the first Turkish player to join the Citizens and the youngest player from the Turk’sh league to make a move to England.