Reached the exit on Level 1 in Adventure mode.
Completed a minefield for the first time without using any flags.
When the pattern 1-2-2-1 was revealed, uncovered the 2 safe tiles within 3 seconds... 20 times.
When the pattern 1-2-1 is revealed, uncovered the center safe tile within 3 seconds... 20 times.
Uncovered a square touching 6 or more mines (not counting "play same board" or custom boards).
Logged in each day of an entire month and completed at least one Daily Challenge.