Here is the full list of all 19 Sheepo trophies - there are 1 bronze, 9 silver, 8 gold and 1 platinum.
Unlocked all other achievements.
Collect 10 feathers in the first 10 minutes
Exit the spaceship within 1 minute
Reach 100%
Collect all 5 hidden pictures
Turn off BirdBot
Collect a LongBird Egg
Beat in less than 3 hours.
Collect all 6 eggs and leave!
Grab the longbird egg in less than 5 minutes
Collect a Froggo Egg
Collect an... Egg?
Beat in less than 1:30
Collect a Slingo Egg
Beat on Hard Mode
Complete your mission without dying
Beat in less than 2 hours
Collect a SlimeBall Egg
Collect a Spineworm Egg