4 Avatars from a unfinished WW2 flying game.

I worked on a simple 2D shooter game at a small developer 8 or 9 years ago.
The game was called "Secret Weapons of the Luftwaffe". Shooting down Nazi
flying saucers and other Nazi secret weapons (real or imagined) would have been
fun....too bad it was shelved. Here's a bit of the artwork.