Chug, Chug, Chug! Trophy in Harvest Moon: A Wonderful Life Special Edition
Chug, Chug, Chug!
Win a milk drinking contest.
How to unlock Chug, Chug, Chug!
Enter the hotel from 2PM to 3Pm and talk to Rock, he will challenge you to a milk drinking contest. Accept and press as quickly as you can once the contest starts. You can tell if you're winning by the drinking animations, there's no counter to show who drank how many bottles. It's easy enough to beat him, so don't worry.