L · C · R are the only triggers — hold one for sustained fire, or press two at once. Dragging anywhere else turns the view, in every mode.
Each turret has its own charge. An idle turret refills faster than one you are holding down. Empty it and it OVERHEATS for two seconds — tap that button again as the needle crosses the bright arc to VENT it back to full.
Shielded drones appear from wave 4 wearing a pink, cyan or gold shell: only the turret of that colour hurts them. Anything else pings off.
All three colours inside a quarter of a second is a RESONANCE — the drone dies whatever its shield or health, everything near it takes a hit, and the points double.
Every fifth wave the portal stops emitting and a BREACH LORD arrives: a hub and three nodes, one in each turret colour, each only killable by its own colour. They shoot back — and a bolt takes hull like anything else.
ROOM puts the fight in the room you are standing in: point at the floor, tap to place the base, and five portals open all the way round you. You turn by turning — a drag does nothing here, because the fight is pinned to the floor, not to your thumb. Needs a phone with WebXR AR; anything else says so and stays on this menu.
Motion controls need no camera at all — the phone becomes the turret and a grid horizon gives you something to turn against.
AR anchors the fight to this target image, shown on another screen or printed.