Here is the full list of all 20 Hyphen achievements.
Watched the credits in their entirety
Earned your first 5✯ rating on level completion
Listened to every track in the soundtrack
Earned 5 5✯ ratings on level completion
Earned 10 5✯ ratings on level completion
Earned 25 5✯ ratings on level completion
Every level completed with a 5✯ rating
Completed every level in the game
Completed half of the games levels
Completed one quarter of the games levels
Unlocked both of the mini games
Survived for 1 minute in the Cannon Dodge mini game
Survived 45 waves in the Hot Floors mini game
Died 100 times
Died 1000 times
Died 5000 times
Get at least a 4✯ rating on the ALLOYD, BIGBADBOB & MCCANNMARC levels
Bragged to at least one social network
Attempted any single level at least 10 times
Launched the game at least 50 times