Late Night Tabata

This is an amazing workout I love doing at the end of the day when I've got some energy left to burn, which is why it's called "Late Night Tabata". But don't worry, it can be done at anytime, any place ;).
1st Part - 20 Secs Work x 10 Secs Interval Rest x 4 Sets
Jumping Jacks
Plank Thruster
---------------------
20 Secs Rest
---------------------
2nd Part - 20 Secs Work x 10 Secs Interval Rest x 4 Sets
Power Squats
Mountain Climbers
---------------------
20 Secs Rest
---------------------
3rd Part - 20 Secs Work x 10 Secs Interval Rest x 4 Sets
Lunge Jumps
Plank Jacks
---------------------
20 Secs Rest
---------------------
4th Part - 20 Secs Work Non-Stop, 20 Secs Set Rest x 2 Sets
Flutter Kicks
Reverse Crunch
Legs Up Russian Twist
Legs Up Reach Around Crunch
Toe Touch Crunch