Here is the full list of all 12 Pinstripe achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Beat the game in less than an hour!
Catch 13 butterflies!
Sniff out all the clues!
Be a complete butt head.
Warm George up!
Beat the game without getting hurt!
Wear Mr. Pinstripe's suit!
Find all three secret rooms!
Get the Tommy Gun!
Collect 1,000 Frozen Drops!
Just be nice, OK?
Kill every monster!