Unal arrived in the Netherlands yesterday and was unveiled at the De Grolsch Veste stadium wearing his new team shirt.
Twente shared a picture of their new striker via social media and the Turkish international also tweeted an image of his new club.
The 19-year-old striker will spend his second season in the Netherlands after joining NAC Breda in January.
Unal scored nine times over the second half of the season adding to his two goals scored at Belgium outfit Genk in his first six months of the 2015-16 campaign.
A source close to the player told Turkish-football.com that Unal wanted to be loaned to an Eredivisie club and is happy with the outcome of the one-year loan – which will not include a buyout clause option.
The highly rated striker was unable to play at City this season due to not having a work permit. Unal hopes to be able to secure a work permit to play in the Premier League in time for next season.