Here is the full list of all 9 Unsolved Case achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Complete Unsolved Case Playing as Old Dog
Direct the laser to the wrong goal
Lose 100 balls
That's not how it works...
Find The Number of the Beast channel
Complete Unsolved Case Playing as Ally
Enter the shipping container and get trapped
Complete the forklift maze
Correctly tune the walkie-talkie