MOVE — WASD / Arrow Keys. Your weapons attack on their own: position is everything.
LIMIT BREAK — SPACE when the orange gauge is full. Each job has a unique Limit.
CRYSTALS — slain fiends drop crystals worth both XP and Gil. Level ups grant stat boosts mid-battle.
WAVES — survive the timer to clear a wave. Between waves, spend Gil at Moogle Mart on weapons (max 6) and equipment.
COMBINE — two identical weapons of the same rank merge into a stronger rank in the shop.
ELITES & BOSSES — glowing elites guard treasure chests. An Iron Giant stirs at Wave 6... and something far worse at Wave 12.
PAUSE — ESC / P. Check your status, tweak the config, or live-code the soundtrack in the Music Room.
DEATH — is permanent... unless you carry a Phoenix Down.