<p><i><b>Xenophobe</b></i> is an arcade game developed and published by Bally Midway in 1987.<sup id="cite_ref-1" class="reference"></sup> Starbases, moons, ships, and space cities are infested with aliens, and the players have to kill the aliens before each is completely overrun. The screen is split into three horizontally-scrolling windows, one for each of up to three players, yet all players are in the same game world.<sup id="cite_ref-2" class="reference"></sup></p> <p>The goal of each level is to defeat all the aliens before time runs out. Some rooms routinely display the percentage of alien infection and time remaining until self-destruct when the level ends (but a nearby button can temporarily deactivate the count-down). Levels may contain more than one floor, and players use elevators (and sometimes holes in the floor) to move between floors to defeat all of the aliens. Players can also pick up more powerful weapons and other items to help in their eradication of the aliens.</p> <p>Each credit gives the player a certain amount of health, which counts down even without combat. Food and some rooms replenish a player’s health. The game cycles through levels, increasing the difficulty each cycle, until all players die and no-one continues. It is entirely possible to do well enough to continue playing without adding more credits.</p>
