Spend 500 coins.

Accumulate 1,000 in-game coins.

Complete 50 levels.

Complete 100 levels.

Unlock a new skin.

Complete the first 10 levels.

Try Marathon mode.

Try Puzzle mode.

Complete 20 levels in a row without using hints.

Complete a level that you failed to solve more than 30 times previously.

Complete all levels in the first chapter.

Complete 5 levels in a row without a single mistake.

Complete 10 levels in a single session.

Complete 3 levels in 3 minutes.

Solve the first level of the day in under 5 seconds.

Solve 30 puzzles within one hour.

Complete 20 levels between 12:00 and 14:00.

Complete a level between 00:00 and 02:00.

Complete 50 levels on Saturday and 50 on Sunday.

Solve 2 levels in 10 seconds.

Use a hint for the first time.

Complete a total of 200 levels in a week.

Complete a level within 10 seconds after using a hint.

Try a new game mode.

Play for 30 minutes 3 days in a row.

Solve a puzzle before 08:00 AM.

Spend 120 minutes in the game without closing the app.

Make purchase.

Reach the Top 1000 in the world ranking.

Submit a highscore to the leaderboard.

Log into the game after a 3-day break.

Play at least one game lasting longer than 10 minutes for 5 consecutive days.

Launch the game 100 times.

Play continuously for over 30 minutes at night (after 00:00, before 07:00).