Sky Raid is a retro - style arcade shooter much like those on the Atari 2600, Apple II, Vic-20 and other 8-bit game systems of the 1970s and 1980s such as Williams' Defender, Activision's Chopper Command and a tiny bit of River Raid and Choplifter thrown in too. So, just like many of those classic retro / Atari 2600 titles it's all about shooting, survival and point scoring!