Cinemaware's old "Wings". Nice little game and perfect for consoles and could make a nice flash game, perhaps ad financed.
Geoff Crammond's "Formula One" race games: (if you have played it you know what I mean, if not, just skip this paragraph)
With the help functions activated, it provides an excellent "equalizer", allowing people to play on almost even terms using gamepads, steering wheels or even keyboards.
"Gunship 2000" and "Red Storm Rising", still the best helisim and subsim, respectively, evah.
I also remember an old Amiga game called "Hunter": You were given a task like "blow up this facility", but exactly how you did it was entirely up to you. You could roam free across a huge map, enter every building and use any vehicle for transport, even a windsurfer! You could collect stuff that might come in handy (like explosives for blowing stuff up).
Respectfully
krise madsen