Get 1 level combo star.
Get a DANGER star.
Get 1 time star.
Receive 1 level from a friend.
Get a x100 combo.
Send 1 level to a friend.
Complete the first tour.
Get all of the time stars.
Get all of the combo stars.
Get 4 stars in one run.
Finish all levels.
Get all the stars in the game.
Find 3 hidden stars.
Get 5 coin dash stars.
Get 5 target stars.
Collect all mini stars on 8 levels.
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