Here is the full list of all 29 BROK the InvestiGator achievements.
Make Brok Swim for 10 seconds in the swamp in Shay's Garage
Finish the game introduction
Finish Chapter 1
Finish Chapter 2
Finish Chapter 3
Finish Chapter 4
Finish Chapter 5
Finish Chapter 6
Get all the game ads to unlock an extra scene
Get all the main game endings to unlock an extra scene
Translate the game language and find the code to unlock the locker
Uncover all the nodes in the summary
Jump on every bed
Jump on every desk and/or table until it triggers NPC dialogue
Steal food whenever possible (outside of fights)
Attempt to hit every character in the game at least once (outside of fights, Tribots and regular rats are not counted)
Print R.J.’s picture with the identikit
Harass the man in the potty over the 3 days
Buy all the medicine in the pharmacy
Play the piano for 10 seconds by walking on it
Survive more than 10 seconds on foot on the highway
Play from the beginning and reach an ending without beating any enemy in direct combat (tutorial excepted and without skipping)
Keep pushing characters around in the laboratory
Drink the water from Dr Mink’s sink too many times
Find all the materials Shay needs
Have Brok's health evaluated at the pharmacy
Wake up a key character by jumping on them several times
Keep the Tramp alive for the whole game
Get a better final score than Klay