Here is the full list of all 19 The Cub achievements.
Find all holo messages
Complete the level without dying
Complete the level in 6 minutes
Escape Wu without dying
Finish the game
Complete the bisons sequence
Escape the Drone
Fly through all of the Neons with Charlie
Find all knick-knacks
Collect all edibles
Kill the robot dog
Enter the pipe in the Soma club
Entrap Captain
Climb the falling train
Complete the mine cart sequence
Escape the bees
Die in 10 different ways
Detonate the bomb and find the bunker
Finish the prologue