Here is the full list of all 23 Eggggg - there are The platform puker achievements.
Get three stars on all levels, and find all secrets.
Collect 2000 golden nuggets in total.
Collect 100 golden eggs in total.
Get three stars on a level.
Defeat 5 enemies on a single level.
Complete a level in under a minute.
Complete a single level 10 times.
Get three stars on a level, and find the level secret.
Defeat an enemy.
Puke one hundred times.
Completed a level without picking up a single nugget
Find a secret.
Defeated by the same enemy 3 times.
Got hit by an egg bullet.
Stood still for 60 seconds.
Filled a pool to the brim.
Swam in a pool for 30 seconds.
Changed running direction 200 times in a level
Completed hard boiled level "Retch For The Sky!"
Completed hard boiled level "Puke Skywalker"
Completed hard boiled level "Beak Me Up"
Completed hard boiled level "Did Not Rage Quit"
Completed hard boiled level "Super Vomit Boy"