Flying Tigers

Flying Tigers is very good clone of the arcade smash Defender. Almost all of the elements of the arcade original are here; multiple different aliens that come out in certain waves (and the equivalent of Baiters coming out if one takes too long on a level), momentum on the player's ship (although it takes longer for momentum to wear off), rescuing humans, the planet blowing up if all humans are lost, smart bombs, etc. The swarmers that shooting a pod creates have different movement patterns than the arcade, and there is no Hyperspace; other than that, Flying Tigers is very close to the arcade original.