There’s something deeply nostalgic about top down scrolling shooter games. You could say the genre was born from a fabled forefather; Space Invaders. In the last four decades, there have been some truly outstanding titles, and some that are best left untouched. Sky Force Anniversary however, thankfully is the former. For those unaware, Sky Force started life as a mobile game and its first major release came on iOS in 2009. However, this is the first game in series to by developer and publisher Infinite Dreams to come to Xbox.