Biological clock game

It is an app that trains your body clock while having fun!
Please compete with your friends! ‥

▼Aim for the perfect fit!
When you stop it exactly, PERFECT is displayed!
Please aim for PERFECT!

▼ time can be selected
You can change the time to challenge, 5 seconds, 10 seconds, 30 seconds.
The longer the time, the more you can't stop without a precise body clock.
Please try to be perfect all the time!