The Brazilian fired home from inside the box to give Kotoko a two-zero lead in the 44th minute at the Obuasi Len Clay Stadium in an outstanding Ghana Premier League match.
Gama celebrated by putting the ball up his shirt to imitate pregnancy, something his wife is currently experiencing.
In March, the 28-year-old took to social media to confirm his wife was had taken seed and expecting a second child.
It was his second goal in successive matches after netting his debut last Saturday in the 1-1 draw with Eleven Wonders.
Gama joined the Ghana Premier League giants before the start of the season by agreeing a two-year deal.
