checked-no =>Today's Picross Extra Modes: By playing and finishing Today's Picross several days in a row without missing a day, you can unlock extra features. * 3 Days - Not X Mode: This is Quick Mode without the ability to tag squares with an X. * 7 Days - Find Mode: Fix a Picross puzzle which has some mistakes in it. * 12 Days - Memory Mode: Look at a Picross puzzle, then solve it with all clues removed. * 20 Days - Secret Mode: Three hint numbers are replaced with Xs. Solve the puzzle without knowing which number is which. =>Extra Free and Normal Puzzles: Level 5 of Free mode will be unlocked once you complete 40 Free mode puzzles, level 6 at 50 puzzles, and this pattern continues until you unlock level 10 at 90 solved puzzles. The same holds true for Normal mode. The Extra stages for either Free or Normal mode are unlocked once you solve all 150 of that mode's puzzles. You must solve each puzzle in under an hour, though.