Existing question currently tagged as 'thewonderfulendoftheworld' (25 characters)
We can't use 'wonderful-end-of-the-world' because it's too long. (26 characters, the limit is 25)
Thoughts? Maybe the-wonderful-end?
A good place to start for these kinds of tags tends to be the main abbreviation of the game used for things like directories. In this case, the abbreviation is "wonderful", so it should be the central portion of the tag.
But just "wonderful" is... going to be terribly misleading. Like my opposition to "mukashi-mukashi-tokoro", I'm not too fond of wonderful-end-of-world skipping an article, so I'm thinking we just focus on the front of the game title, as you proposed initially.
This sentence intentionally left useless for the sake of reaching 30 characters.