Compatible emulators

Synopsis

A mothership drops aliens, up to three on screen at a time. There are ten per level. You have to shoot them, but avoid the objects they shoot at you.
Later, enemies will release fireballs that chase you along the ground or split into two smaller enemies when shot at. If you pull constantly, you will build up heat as indicated by the green bar at the bottom right.
If you overheat or get hit by an enemy, you lose a life. The game is over when you lose all your lives or reach a score of 999,999,999. You get a new life (maximum 4) every 10,000 points.

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