Here is the full list of all 35 Yooka-Laylee achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Unlock 15 Tonics
Defeat Capital B at the end of the game
Collect all 145 Pagies
Defeat the World 5 boss
Collect all 1,010 Quills
Find all five of the pirate treasure items
Find any three of the pirate treasure items
Collect every Ghost Writer in the Grand Tome worlds
Defeat the World 4 boss
Collect all 6 power extender items
Collect all 6 health extender items
Purchase all of Trowzer’s moves
Expand all five Grand Tome worlds
Unlock every Grand Tome world
Collect 75 Pagies
Expand three Grand Tome worlds
Collect 500 Quills
Defeat the World 2 boss
Defeat the World 1 boss
Get transformed by Dr. Puzz for the first time
Collect 30 Pagies
Expand a Grand Tome world
Defeat the World 3 boss
Find any one of the pirate treasure items
Complete one of Kartos’s minecart challenges
Collect your first 200 Quills
Complete one of Dr. Quack’s Quackfire Quizzes
Disrespect the Idol
Unlock and equip a Tonic
Get the high score in one of Rextro's Arcade Games
Successfully complete one of Rextro’s arcade games
Purchase a move from Trowzer
Collect your first Ghost Writer
Unlock the first Grand Tome world
Collect your first Pagie