i don't know what to think :S

the scrensaver here look smooth, on every resolution.

pls test this demo (an unifinished port by me ) it uses sdl+gl and uses the same delay from the code i've pasted.

you need an dual analog joystick to play (in poseidon select the 2 sticks as 2 joystick separately on port 1 and 0 and enable the analog hack )

http://www.mediafire.com/?gfzap97z551cvqg

here it dosn't jump , and there are a lot of polygon/particle