Phoenix
Topping the list of the 1980 edition of Fun Facts You Probably Didn't Know is this: Birds hate humans, and all those birds you see hanging out in parks and sitting on wires along the highway are actually the spearhead of an intergalactic invasion force. It's shocking, but true. You'd think they would have been content to crap on our freshly washed cars, but that just wasn't enough. The cheerful singing of songs in the garden and the cute pecking for food by the pond was nothing more than a ruse to soften us up so the invading hordes of extraterrestrial raptors can crap on the entire planet. No pressure or anything, but you may want to hop into your space ship and defend the earth. Good luck, we're all counting on you.
Gameplay: Phoenix splits an avian attack into several stages, culminating in the attempted landing of the mothership. The good news is, the birds aren't that smart, and they tend to attack in repetitive patterns. The bad news is, there are an awful lot of them. However, you've got your trusty laser blaster to knock them out of the sky, and a spiffy shield as a last resort. But don't rely on it too much: It only lasts for three seconds, and it takes at least seven to recharge.
Could be mistaken for: Gorf, Galaxian, Pleiads.