suggestions:
switch L-R directions like Defender
dogfights with the red baron
vertical and horizontal (have to stall through them) hoops
ability to shoot up buildings
levels with different goals... then you fly somewhere else to the next level.
aircraft carrier landings
other/faster planes
some of the text in the UI is too small, old games just had 1 font.
braking at landing is confusing... too easy to accidentally switch to full throttle
some of the text in the UI is too small, old games just had 1 font. braking at landing is confusing... too easy to accidentally switch to full throttle