Ona achievements
Gamer III Degree
Complete 500 puzzles on Medium difficulty level
Traveler III Degree
Complete 100 puzzles from Cities of the world, Countries category on Medium difficulty level
Animal lover IV Degree
Complete 50 puzzles from Animals category on Medium difficulty level
Party King V Degree
Complete 10 puzzles from Holidays category on Medium difficulty level
Art critic III Degree
Complete 100 puzzles from Art category on Medium difficulty level
Sportsman V Degree
Complete 10 puzzles from Sport category on Medium difficulty level
Astronaut V Degree
Complete 10 puzzles from Space category on Medium difficulty level
Techie V Degree
Complete 10 puzzles from Technics category on Medium difficulty level
Historian IV Degree
Complete 50 puzzles from History category on Medium difficulty level
Collector V Degree
Complete 10 puzzles from Stuff category on Medium difficulty level
Architect IV Degree
Complete 50 puzzles from Architecture category on Medium difficulty level
Homebody IV Degree
Complete 50 puzzles from Home category on Medium difficulty level
Master V Degree
Take place from 101 to 500 in the player rankings at the Medium difficulty level.