There's enough tips sites across the rest of the Internet to save me digging into every Vita release.
However, from time to time, I find a title without much coverage, missing some useful information that I've stumbled across, or an annoying level I figured out. Here are my tips, guides or maps, will add more as and when.
Criminal Girls 2: Party Favors inc First Area Maze Hell 4F
Demon Gaze Maps early levels and later ones
If you need hints on another game try Gamefaqs or Wikia for advice.