Full list of all 8 Kinect Fun Labs: Junk Fu achievements worth 50 gamerscore. It takes around 0-0.5 hours to unlock all of the achievements on Xbox 360.
Shared 10 epic victory pictures
Earned the pizza bonus stage
Destroyed 40 screens of objects without missing
Shared an epic victory picture with your friends
Earned the cupcake bonus stage
Reached a score of 20,000
Reached a score of 5,000
Earned the dinner mint bonus stage