Plus:
- automatic save of entered numbers and guesses
- undo feature
- optional automatic error checking
- collect rubies for solving puzzles, and stars for solving all levels in a day
- daily, weekly, and all time rankings
Plus:
- automatic save of entered numbers and guesses
- undo feature
- optional automatic error checking
- collect rubies for solving puzzles, and stars for solving all levels in a day
- daily, weekly, and all time rankings