In just about any Role Playing Game that has a level system, players will try to make the game easier for themselves via Level Grinding. Most games only gently discourage this, by simply making each level take longer to reach than the one before it, unless you're actually going through the game at the intended pace - in which case the requirements for gaining a level end up keeping pace with what you can get toward a level-up from the current enemies. Level Scaling is a Sub-Trope.