Up to Normal the ship dodges for you and landing a letter briefly shields you. From Hard both assists are off — staying alive is down to your space juke. You hold two charges, because an attack run is usually two threats: the diver, and the shot trailing about a second behind it.

Squadron size adapts to the set — every ship on screen gets a different starting letter, so a target is never ambiguous.

Fades a keyboard across the play field and lights up the next key, colour-coded by the finger that should press it, so you can learn the reach without looking down. When stuck keeps it hidden until you miss three keys in a row, then shows it until you get one right — help when you need it, and nothing to lean on when you don't.