Hi Reiter, I've ran your latest RC4 and it's loading/running perfectly albeit the gameplay is incredibly quick. I'm not sure if this your desired speed but it's nearly impossible to dodge fire. Given you've lowered the speed and Traveler states it's playable and given my CPU clocks over 4ghz this might suggest that your timing routines or some aspect of your code are/is not CPU independant (that rate of the action depends on the speed of the CPU) if this is not the case then I'm getting old because I'm not fast enough!

Other than that, love it! I love the graphical style and excellent choice of music, You've put a lot of retro love into this game and it shows, It reminds me of Jet-strike (on the amiga) keep up the good work!