Get a score of 50 points.
Get a score of 25 points.
Get a score of 100 points.
Get a score of 250 points.
Get a score of 1000 points.
Get a score of 500 points.
Play 100 times.
Play 500 times.
Play 5000 times.
Play 1000 times.
Unlock 1 character.
Unlock 10 characters.
Unlock 50 characters.
Unlock 25 characters.
Reach the moon.