Harder levels are levels are quite hard to beat. They are worth 6 or 7 stars, or occasionally 0 stars. They are signified by a mad red-orange face.
Levels that are harder than harder levels are Insane levels, usually worth 8 or 9 stars, and easier than them are the Hard levels, worth 4 or 5 stars.
- Some levels claimed to be "impossible" may be given this rating with no stars.
- This is usually the rating deserved for hard, harder and insane levels before getting a star rating.
- Hardly ever some hard or insane levels get mistakenly rated harder with 5 or 8 stars, but this gets quickly fixed.