Difficulty spikes

1. Game Balance vs Fair Play (Gamification Achievement Systems Tips)
2. Game Completion vs Player Completion (Gamification Player Progression Tips)
3. Player Learning vs Player Growing (Gamification Player Progression Tips)
4. Level Design vs Game Balance (Player-Centric Gamification Tips)
5. Difficulty Curve vs Learning Curve (Player-Centric Gamification Tips)
6. Game Complexity vs Game Difficulty (Gamification Achievement Systems Tips)
7. Quests vs Missions (Gamification Player Progression Tips)
8. Game Pace vs Game Flow (Player-Centric Gamification Tips)
9. Single-Player vs Multiplayer (Player-Centric Gamification Tips)
10. Game Scenario vs Player Scenario (Gamification Player Progression Tips)
11. Learning Curve vs Difficulty Curve (Gamification Player Progression Tips)
12. Player Growth vs Player Mastery (Gamification Player Progression Tips)
13. Game Progression vs Game Advancement (Gamification Achievement Systems Tips)
14. Game Respawn vs Game Revive (Player-Centric Gamification Tips)
15. Gameplay Difficulty vs Player Skill Level (Gamification Player Progression Tips)
16. Game Levels vs Player Levels (Gamification Player Progression Tips)
17. Player Challenges vs Game Challenges (Gamification Achievement Systems Tips)
18. Skill Advancement vs Level Advancement (Gamification Player Progression Tips)