This is my own personal list of bag 5 solutions to the ET cannon. Unlike Jimothy’s list, the first 7 one this page were chosen because I like the way they look rather than because they cover all situations. I added a few other solutions after then, some of which were on Jimothy’s list and some which were not but I saw on the original Japanese website where I found the list of 153 solutions.
Note that perfect 1 and 2 were also part of Jimothy’s list and are arguably the most common solutions I use in actual play.
These first 7 solutions are the ones where the pieces fit together without line clears. These look the best and cover most cases.
However, as much as I like those solutions, there are special cases where none of them work. If the first pieces are O and S then they are all impossible. To correct this, I am adding a few more to my list of favorites.
Perfect 3 works very well in the case of S being the first block. Additionally it has a small chance of allowing a T spin double which can make a huge difference in a VS game with the amount of garbage of that with a perfect clear shortly after.
The reason perfect 6 is the ideal solution in this case is because it allows the S and O pieces to be placed but not block access to the Z piece. However this still requires that the T piece comes after Z. However if you had an early T piece, it would be the base for both S and O in the perfect 2 solution.
The next solution, perfect 12 is one that I accidentally did in real gameplay because I had put the I piece on the left as if I was doing perfect 3 but the other pieces were arranged as if I was doing the perfect 2 solution. This means that this solution can recover from this mistake. It also means that placing the T and I pieces in the same spot is a safe bet because it means from that point the solutions perfect 3 or perfect 12 can be used if you haven’t decided which solution to use yet.
Another one that I really like is perfect 60. This is unlike any other solution I have found so far because it’s entirely possible to put the top part with J,L,I upside down and it also doesn’t make a difference if building the ET cannon in the reverse. If however you get an early J and I you would want to use perfect 1 because that would probably work best. Perfect 60 is useful when O and S are the first pieces.
The next solution, perfect 31 should not be used very often because it is risky, but I will include it because it also allows for the case where the orange L piece comes later. It also makes a t spin single possible which is good for showing off.
Another solution that is most helpful is perfect 61. This is helpful because the O,S,L come first and they mess up the perfect 1 and 2 solutions that are my favorites.
That is all for now, but this list may be added to as I need.
If you want an example of some serious use of the ET cannon I have this video I did in Puyo Puyo Tetris. I got 7 perfect clears and 98 lines before the pattern broke.
At a certain point the game gets too fast to continue with the ET cannon because the game goes too fast. But it does allow some crazy high scoring because of how T spins are rewarded. Afterwards it’s best to freestyle.