Swap Attack

THE FORMATION

You don't control a character. You control a formation: one clone in each arena, moving in perfect lockstep from a single input. Push left and both clones push left. A wall in either arena stops the whole formation, so every route you take is the overlap of two maps at once. Reading both screens is the skill.

ONE GUN

There is exactly one weapon between them. Only the clone holding it can shoot; the other is defenceless. Throw the gun across the divider to arm the far side, and for the moment it's in the air, nobody can shoot at all. Every fight becomes a running argument about which screen deserves the gun right now.

THE LAB

Death ends the run, not your progress. Everything you collect in a run is banked, and between runs you spend it in the Lab: a tree of 109 permanent upgrades across nine branches. Raise your fire rate, damage and armour. Unlock modules that pierce, burn and detonate. Learn abilities that change how the formation moves and fights. Then go again, and get further than last time.

NINE WEAPONS, ONE GUN

New weapons don't replace the gun. They stack into it. Split your shots into a fan, widen the fan, bounce it off the walls, then add piercing and fire on top. However big the build gets, it still lives in the one gun you keep throwing across the divider, so the throw still decides every fight.

THE GATES

A boss guards every tenth round, each one built around the split screen. The Twins mirror you across both screens with a shared health pool. The Gatekeeper seals each arena behind a wall of shock rings. Three more wait beyond them. Break all five gates, clear round 50, and the run is yours.

FEATURES

• Split-arena lockstep movement: one input, two clones, two maps, no separation

• A single shared gun you throw across the screen divider

• The Lab: 109 permanent upgrades, from weapons that stack into the one gun to modules and abilities

• Six handcrafted bosses built around the split screen: five on the road to round 50, one waiting in the Boss Lab

• Three ways to play: Standard, Melee Only and No Bosses

• Global leaderboard for Standard runs

• Full gamepad support with auto-swapping control glyphs and rebindable controls

• An adaptive soundtrack that builds with every fight and stops dead when you fall

• Accessibility options: assist i-frames, flash reduction, screen shake toggle, colour pairs, enemy outlines, HUD scale