The red Ship looks cool :D
But sorry it runs too slow on my machine, its an old 2.4 Ghz (1FPS or so) and the ship is off screen too fast to judge handling.
You used Construct right? ;)
I think using Custom Behavior is no option for me. Its just not interactive enough for me. I have to do all the calculations, I would have to write my own Boxed2d Physic for things that collide, no thanks <img src="smileys/smiley6.gif" border="0" align="middle" />
I prefer letting Physic behavior work it out with proper input and tweaking. The rotation already works really well with so little effort.
I just want the math to work right (Angle_of_Motion). I'm just not seeing the flaw, if you or anyone could help me with that, I'm all happy ^^
But thanks for your suggestions.