Also despite not having “côte” in its name Nigeria is also supposed to be on the coast. Lagos, its biggest city, is a harbour city.

…and Cameroon borders Nigeria.

Edit: The more I look the worse it gets. Côte d’Ivoire, Malawi and Uganda are the only ones roughly in the right spot, but they are all misshapen, and the first two mislabeled. Mozambique is costal too, but closer to Madagascar and it borders Malawi heavily, like half way engulfs it.