Works fine on my old trusty Athlon 2600 with Geforce 6600.
Couple of points though:-
When the Game over requester comes up you can press enter to continue but the requester stays on screen causing it to overwrite on high score entry and title screen until you click ok.
Also it seems that you can lose 3 lives at once when you spawn after crashing and there's an asteroid directly under you even though your shield is on.
On title screen holding down return seems to lock the whole screen up but other keys don't. I found that out by accident pressing enter to start game instead of fire.
Nice looking game though - the colour effects are fantastic.
BTW I'm running in full-screen mode when I tested it.
Couple of points though:-
When the Game over requester comes up you can press enter to continue but the requester stays on screen causing it to overwrite on high score entry and title screen until you click ok.
Also it seems that you can lose 3 lives at once when you spawn after crashing and there's an asteroid directly under you even though your shield is on.
On title screen holding down return seems to lock the whole screen up but other keys don't. I found that out by accident pressing enter to start game instead of fire.
Nice looking game though - the colour effects are fantastic.
BTW I'm running in full-screen mode when I tested it.