Take the controls of the invading formation and break through the gun that's usually yours to command.
Maneuver your descending swarm past a defending turret, dropping bombs to destroy it and its bases before you run out of drones.
Space Invaders from the other side. The descending formation, the steady march, the drop each time the rank reaches the edge — all of it is the 1978 original's, and you are driving it.
Playing the aliens changes what the formation is. From below it is a threat that speeds up as it thins; from above it is a body you are steering, and every loss to the gun makes what remains faster and harder to control.
That speed-up was famously an accident — the original hardware simply drew fewer sprites faster. From this side it becomes a mechanic you have to manage rather than a menace you endure.
Reverse Phalanx inverts the classic fixed-screen shooter so you play the descending attackers. It is an original free browser game built in-house for PlayPendium.