Miasma (qwerty3.14)

Some scientist came across a mysterious capsule. Upon opening it the Miasma was released, infecting them and their ship. You control this infected ship as it rampages through waves of enemies. Gameplay consists of moving back and forth and shooting. You also have the ability to launch a miasma capsule. If this capsule lands what would be a killing blow on a ship it will instead become infected, fighting enemy ships for you for a short time. Every non boss ship can be infected but some may need to be weakened a bit first. The game has 17 different enemy ships to fight all with their own pattern...