Here is the full list of all 23 My Exercise achievements.
Complete 10 sets.
Complete 9 sets.
Complete 8 sets.
Complete one set in under 8 minutes.
Complete 6 sets.
Plant 9 flowers before you reach 130 points.
Exercise for 1 hour.
Watch 50 sit-ups without touching the root.
Complete 4 sets.
Slap the root 100 times in 14 seconds.
Complete 2 sets.
Reach 20,000 points in one set.
Reach 2,000 points in one set.
Discover the small Buddha.
Rub the girl's hands ten times.
Complete one set.
The Buddha enters the dog.
Clap the girl's hands ten times.
Rub the fur for 30 seconds.
Enter the dog's vision.
Recover from melting.
Don't stop the seal while it's sliding.
Do 10 sit-ups.