It's Cheesy... ... ... But NOT as cheesy as "DASH CIRCUIT!!"
This is a video to show how to overcome the devastating, dreadful Block Circuit in 3D Dot Game Heroes. It requires some patients to perform but not nearly as much patients as it takes to clear the Monaca Circuit in under 60 seconds. YOU CAN DO THIS.!!
When pausing, use the 'Select Button' not the Start Button. You'll have to improvise on how you will hold the controller to perform this. I used my two thumbs for pressing circle and select back to back on straight-ways and I had to use my thumb on with my left hand on the D-Pad along with my index and thumb finger (at the same time) for Select and Circle for turns.
I was a Dash Circuit victim myself, staying up hours at a time trying to clear these times just to end up CONSTANTLY a few seconds off...
Once I figured this out I beat it in about 15 minutes..!
Good Luck.!!