Here is the full list of all 12 Sam & Max - Beyond Time & Space: Episode 4 - Chariots of the Dogs trophies - there are 8 bronze, 3 silver and 1 gold.
Gain access to Bosco's secret room.
Get Bosco back to his normal paranoid human self.
Provide an inventory item for use in Episode 5.
Fix Bosco's temporal anomaly problem.
Get a recording contract for the youngest Pedro.
Get rid of the middle-aged Pedro from his communications post.
Answer and prove the two questions the older Pedro has.
Get rid of all three Pedros from the ship.
Complete Episode 4 - Chariots of the Dogs.
Choose every dialog choice with each AI personality.
Use the Carbon Dater on every possible character.
Use each of the wrong personalities of AI in Bluster Blaster.