That being said, the game takes around 14 hours to complete overall — though if you’re someone who spends a lot of time searching for all of the little secrets hidden in the game, or you’re playing with a relatively new gamer, then this title may take you a bit longer than that.

Throughout the seven chapters, there are 25 different minigames for you to unlock and play with your partner. These alone can easily take up hours of play time, especially if you’re a particularly competitive person.

Source: https://www.distractify.com/p/how-many-chapters-are-in-it-takes-two