Here is the full list of all 37 Bitsy Bits achievements.
Put a stop to Twinkle's magic dictatorship!
Get a score of 10 or higher playing Stinger Stings
Get a score of 100 or higher playing Snake Picks
Last 100 seconds or more playing Rocker Bombs
Collect 100 apples or more playing Apple Fall
Last 5 minutes or more playing Cannons Away
Get a score of atleast 5 on Busyfly Flier
Get a score of at least 10 on Busyfly Flier
Get a score of 30 or higher at difficulty level 3 playing Moonfish Glide
Get a score of 1 or higher playing Petals... without cheating
Get a score of 5 or higher playing Midas
Reach at least level 100 playing Mothership
Reach at least level 200 playing Mothership
Reach at least level 300 playing Mothership
Reach at least level 400 playing Mothership
Reach at least level 500 playing Mothership
Reach at least level 600 playing Mothership
Reach at least level 700 playing Mothership
Reach at least level 800 playing Mothership
Reach at least level 900 playing Mothership
Reach level 1000 or more playing Mothership
Get a score of 1,000,000 or hgher playing Bitsy Pop
Beat the game in an hour or less
Collect all treasure and use the magic ship to skip each level
Defeat Twinkle in each castle without taking damage from Twinkle
Get a score of 100,000 or more on Bitsy Blocks with large blocks
Get a score of 10,000 or less playing Bitsy Shuffle
Comple Magic difficulty
Complete Jumper difficulty
Complete Bitsy difficulty
Complete Twinkle difficulty
Complete Master difficulty
Complete Stage 0
Complete ABCDE
Complete stage 50