Here is the full list of all 19 Sockventure: Prologue achievements.
Start the Prologue
Complete all the Fire Levels of the Prologue
Complete all the Soap Water Levels of the Prologue
Complete all the Acid Levels of the Prologue
Collect your first Sock!
Find and collect all the Socks
Collect all the Coins
Beat the Prologue
Beat the Prologue under Time Challenge
Die 200 times
Beat the Prologue without Dying
Beat the Prologue under 6:30
Disable all the dialogs from the game
Use Suicide button
Do a Dash Jump
Do a Super Dash Wall Jump
Beat the Dark World
Beat the Dark World without Dying
Beat the Dark World under 6:00