Extra T-Spin Cannon

Extra T-Spin Cannon (abbreviated: ET Cannon, Japanese name: ET砲) is a opener first created by Yu. You do a T-Spin Double in the second bag, a T-Spin Triple in the third bag, another TSD in the fourth bag and a Perfect Clear in the fifth bag.

Second Bag
One will always be able to stack their 2nd bag this way.

Third Bag
Again, one will always be able to stack their 3rd bag this way.

Fourth Bag
Yet again, one will always be able to stack their 4th bag this way.

Fifth Bag
There is a 100% PC chance and there are 13 minimals, all of which are shown below.

Perfect Clear after 8 lines
If one can stack the T-Spin Triple like below, then they will have a slim chance to do a Perfect Clear after 8 total lines.