There was no colour on a Hercules and there is none here: what the card gives you is RESOLUTION — 720x348, twice a CGA's dots — and this game spends all of it. The picture rides 640x300; brightness is dither density, and the cockpit ships pre-drawn in those densities, baked offline. N still switches day and night: the night sky thins to sparse grain. The keys are OWL FLY II's, key for key — the full manual lives on the OWL FLY II page. Alt-Q leaves, ESC pauses: the world freezes, the views, radar and map keep answering.
On a touch screen the stick and the buttons you HOLD are drawn over the picture; the switches you press once — GEAR, FLAP, IFF and the rest, spelled out rather than lettered — are behind the keyboard button in the side menu.