Sudoku DS: Nikoli no Sudoku Ketteiban - Unlockabe Timed Puzzles

Sudoku DS: Nikoli no Sudoku Ketteiban - Unlockabe Timed Puzzles
Unlockabe Timed Puzzles:

Name: How to Unlock:
Rookie Get 30 stars
Beginner Get 40 stars
Amateur Get 70 stars
Mania Get 100 stars
Veteran Get 130 stars
Semipro Get 180 stars
Pro Get 230 stars
Expert Get 300 stars
Specialist Get 450 stars
Sudoku Master Get 650 stars