public void Rule6(float dt, World world)
{
Asteroids = (
(Asteroids).Select(__ContextSymbol27 => new { ___a65 = __ContextSymbol27 })
.Where(__ContextSymbol28 => ((1500f) > (__ContextSymbol28.___a65.Position.Y)))
.Select(__ContextSymbol29 => __ContextSymbol29.___a65)
.ToList<Asteroid>()).ToList<Asteroid>();
}