This is JOLLY ROGER, a 2D platform game for mobile devices that me and my brother are currently developing during our free time.
here you can see some updates
A very famous pilot which causes the fear in the Mediterranean sea. Otto Flugmann, known as Jolly Roger.
Hanz Gruber aka Ace Of Spades.
Jane Crow. (There is a song by Skip James "Crow Jane", Check it out :) )
Baron Von Rothlein aka "Piranha"
some airplanes and basic animations: