The Lorax Continuation is a continuation of the well known opener, PCO. It was created by the user Reconnecting. It is a 14 line tall opener (in some paths), so it is loopable. With a PC chance of a lot and many branches possible, it is very flexible.

Bag 1

With the L, J, I, and O pieces, you can make a 4x4 box.

Bag 2 Instead of PC, the second bag is built with the Z piece on the rightmost side, facing up. The S piece goes on the edge of the 4x4 box, also facing up. The J piece goes into the 1st bag, almost resembling a C-Spin. The L piece goes on top of the J piece, with the 3 squares a block above the tip of the J. The O & I pieces go to the right side on top of the 4x4 box, with the I piece to the rightmost side of the board facing up, while the O block is placed right next to the I piece. Lastly, the T piece makes a T-spin Single. Bag 3 For this to work, you need an early L, and a late Z & T. The third bag is built with the S piece to the right of the 3 block gap, or on top of the other S piece used for bag 2. The J piece goes to the leftmost side, preparing a T-Spin Double. The L piece fits to the right side of the S, and the O piece fills in the gap. The Z piece stands on the S & L pieces, so after the T piece, it forms a complete C-Spin. The I piece goes on top of the last placed I piece in bag 2, facing up. Finally, The T piece performs a T-Spin double, resulting in a clear of 2 lines. If you are unable to do this path due to early Z and late L, you can do this instead: Bag 4 (C-Spin + TST) It is not recommended due to it being very tall setup. Can be managed to pull off if built very fast without misdrops. Freestyling usually starts after 4th bag. Bag 4 (PC Route) Bag 4 requires a heart shape to fill in the hole (e.g. L & S pieces fit together to make a 3x3 box with a square chipped off). The red blocks specify where you need to fill in. The green blocks specify where you need to fill it in AFTER the red blocks have been filled. If you have a T piece, do the T-spin Triple instead of holding. Also, you can skim with the I piece and place the O the the rightmost spot.