It's a twin-stick vertical scrolling Shooter hybrid with a cinematic flare:

An unrelenting onslaught of eye-popping visuals, ear bursting soundscapes and mind-melting action makes Cygni the vanguard for the next generation of shoot-em ups. Outgunned, outmanned and out on your own, plunge into a sky full of hell in a last-ditch battle for survival. Upgrade your ship by picking up new tech and take down colossal alien bosses in visceral combat.