Although I'm fine if you refer to a page as a specific name and not as the digit (I even did this once,) please do not name a page "Level ___ - the ____ ___ ___." The digit alone is enough, and you can put the title in a Displaytitle template.
Level Fun is an enigmatic Level. Level 33, the Unending Library, is a numerical Level that should not have “the Unending Library” at the end. (It doesn't actually have that, just using an example.)
Levels with numerical values should only have that value in their name; Levels without numerical values should instead have the name of the Level in it. For example, Level Fun has no digit, and thus does not need to be moved. Meanwhile, the hypothetical "Level 9996, Escape" should instead be "Level 9996," with the title, "Escape," being desplayed in a {{Displaytitle}} template.