Ops

Ops is an action game about operating the Karl Zjunior Very Lethal Array, a giant radio telescope disguised as a weapon. You use it to destroy hostile alien ships over rural New Mexico before they abduct the local cattle.

Defend the cattle

The aliens consider cows more intelligent than humans and try to abduct as many as possible. The rancher’s cattle are important to your employer, the National Radio Ablation Office (NRAO), so you must stop the aliens before they take them all. Their ships fire laser cannons that heat your antennas; destroy an attacking ship before an antenna melts, and it will eventually cool down.

Other threats

At higher levels, chupacabras also appear. A chupa may eat a cow whole, usually carrying it to its lair first. Once one has bitten and clawed a cow, the animal is mortally wounded and cannot be saved.