It seems the developer, Paladin Studios, is trying hard to keep the feel of the arcade classic intact while still giving it a more modern feel. They even brought back “Twin Mode” which allows players to double their firepower. 

Derek De Geus, CEO of Paladin Studios says:

Get ready for some good old space bug squishing action when GALAGA WARS releases. It should be available on all mobile platforms soon.

Check out the official website for more details. The nostalgia is free of charge!