I'd like to come up with some constructive comments, but I find everything so inconsistent and alien to me...

For example, variable declarations use the pattern <colon> <type>, as in

  var a: Int32

But literals follow the opposite syntax, as in

  a = Int32: 42

The return type of a function is introduced by : in func definitions, but by -> in imported func declarations:

  func foo(a:Int):Int
  import func bar(a:Int) -> (Int)

Other construct that I find far from my habits:

  var w, h, d = 640, 480, 2

instead of the more obvious (for me):

  var w=640, h=480, d=2

Arguments are passed by ref, not by val. Good luck with recursion!