Difficulty scaling mechanisms

1. Player Targets vs Player Goals (Gamification Player Progression Tips)
2. Player Training vs Player Development (Gamification Player Progression Tips)
3. Gameplay Mechanics vs Player Mechanics (Gamification Player Progression Tips)
4. Player Feedback vs Player Progress (Gamification Player Progression Tips)
5. Game Advancement vs Player Advancement (Gamification Player Progression Tips)
6. Progress Bars vs Completion Bars (Gamification Player Progression Tips)
7. Quests vs Missions (Gamification Player Progression Tips)