Survive with just one inverted bullet!

An incident occurs at a space research station and all workers are infected with a deadly virus. Only a guard armed with an anomaly weapon can survive. He has only one inverted bullet, fists and legs.

Controls:
Move with [W][S] or [Arrows Up and Down],
Rotate with [A][D], [Arrows Left and Right] or Mouse Movement,
Shot and revert bullet with Left Mouse Button,
Punch and Kick with Right Mouse Button.

Art: Quaternius (quaternius.com)
Music: Muz Station Productions - Can't Stop Me.