Jets'n'Guns

From Rake in Grass:

Jets'n'Guns is a side-scrolling air combat game that brings back the good old arcade carnage you used to love with plenty of weapons, power-ups, and enemies to make up for all the quarters you spent years ago. Guide your fighter jet behind enemy lines avoiding enemy fire from planes, zeppelins, ground troops, and much more while collecting power-ups for more metal-piercing firepower to reach the infamous level boss.