Closed surfaces with Euler characteristic 2

The only connected closed surface with Euler characteristic $2$ is the sphere.Suggest a slogan

Let $\Sigma$ be a connected closed surface with Euler characteristic $\chi(\Sigma) = 2$. Then $\Sigma$ is orientable of genus $0$, and $\Sigma \cong S^2$ [@Mun00]; [@Hat02].

Which surface has Euler characteristic 2?