711 Casino's Space Invaders includes a UFO that periodically flies across the top of the screen, shooting it down rewards a random bonus point value that varies with each appearance.
The UFO's point reward is randomized on each crossing, adding anticipation to each shot: landing the hit reveals the bonus value only after impact.
UFOs move at a consistent speed independent of wave difficulty level, so the timing challenge of targeting one does not change as later waves make the formation faster.
Prioritizing the UFO during an active wave is a calculated risk, breaking from formation clearing to aim at the top of the screen may expose the player to alien return fire.
Space Invaders is fully offline; UFO score contributions are included in the wave total saved to local history.
711 Casino's Space Invaders includes a UFO that periodically flies.