Take a look at Super Mario, or even PacMan, or Arkanoid.
How are their levels made, do they created a simple level editors to visualize them, or they designed them by hand (directly with code)?
closed as not a real question by BlueRaja - Danny Pflughoeft, MFAH, Byte56♦, bummzack, Sean Middleditch Feb 10 '13 at 20:52
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.