He's done it. https://www.youtube.com/watch?v=aWJMZUCAhJ4 (Thread posted with permission. Sorry that this post is nearly a month late.) Featuring recording of the full physical laptop screen + hand on keyboard. For anyone out of the loop, Phantom Mania is a mode in Nullpomino that is essentially T.A. Death turned 100% invisible (plus TGM3 mechanics). Yes, that means surviving not 60 seconds, but a full 999 levels of invisible Tetris, all with the sadistically accelerating speeds that Death is infamous for. But this is Death's mechanics plus TGM3's mechanics, so of course survival alone isn't enough. First there's the three torikans at 300, 500, and 800 - reach these three levels too slowly and the game ends prematurely. The level 500 torikan is a little bit more lenient than original Death's, at 3:38 instead of 3:25. Second there's the grade requirements. Grades M, MK, MV, MO, and MM are straightforward enough - "simply" survive to level 300/500/600/700/800 and you've got it. Finally there's GM, the beast that zero people have managed to conquer - until now. Naturally, surviving to level 999 doesn't cut it. The grade also demands that you make a whopping 31 Tetrises in total, as well as 2 in each section 000-899 and 1 in the final section. And of course everything's invisible the whole way, so forget the location of just a few holes a minute in and you're hosed. Thought getting six grades in Ti's credit roll was hard? Other than Question_Mark, no one has ever gotten above an M grade on this mode, which is already more than ~twice as long as the credit roll. If I remember correctly, during the development of Nullpomino one of the developers had begged Zircean to make the Phantom Mania grade requirements easier. Looks like that might not be so necessary anymore. For those unfamiliar with the relevant history: 2006-07-09: Lockjaw creator Tepples documents an algorithm proving for the first time that with SRS, the Bag randomizer, Hold piece, and enough previews available, it is possible to play forever. The documented method requires 5 next pieces, low gravity, and 20 bags (140 pieces) to loop. It is mentioned that the shortest physically possible loop is 5 bags (35 pieces) since bags occur every 7 pieces and bravos can only occur every 5 pieces. However, the documented method is stuck at 20 bags because it has an STZ pattern that only loops every 4 bags. 2007-06-25: Tepples improves the Playing forever algorithm to only need 4 next pieces. 2007-10-13: Colour_thief improves the algorithm to only need 3 next pieces. 2008-02-06: Someone mentions on the Playing forever talk page that an optimal 5-bag loop is impossible, since it contains an odd number of Ts which cannot possibly be tiled into a even-dimensioned rectangle. This is quickly amended to say that any 5-bag loop would require making holes and fixing them as part of the algorithm, making it extremely difficult. 2014-12-13: More than seven years after the previous update, Question_Mark documents in a 2100+-word essay a 10-bag loop, using L and J pieces in the STZ stack to make them possible to loop on multiples of 2. This method is dubbed "Playing Forever V2". 2014-12-13: Less than a day later, Question_Mark posts a 2600+-word essay documenting the holy grail: a 5-bag playing forever loop. After a quick patch to fix a worst case scenario, this method, rigorously proven to be the shortest possible loop ever, is dubbed "Playing Forever V3.1". 2014-12-14: To add (quite a lot of) icing onto the cake, QM demonstrates that the PF-V3.1 method is doable in 20G. One remarkable technique (in my opinion) needed to pull this off requires rotating a Z piece left nine times in a row, which QM dubs the "epic flail". 2014-12-21: One week later, QM successfully uses the above technique to achieve an M grade in Phantom Mania, which requires a minimum of six loops (he pulls off seven). But the fastest parts of the mode are yet to come.... 2015-02-04: QM achieves the world's first MasterK grade in Phantom Mania. 2015-03-23: QM achieves the world's first MasterV grade in Phantom Mania. 2015-04-27: QM achieves the world's first MasterO grade in Phantom Mania. 2015-05-02: QM not only achieves the world's first MasterM grade in Phantom Mania, but also makes it to level 999 and clears the credit roll, earning him the highest possible grade short of GM. Unfortunately this is the end of the road, as he has been relying on his created Playing Forever method to conquer the invisibility that all others have yet to, and the method doesn't make it possible to clear enough Tetrises to satisfy the GM requirement. So there is no way to get any further...or is there? 2015-09-14: QM does the impossible and invents his own memory system that can consistently memorize the entire stack, documented in another 1600+-word essay and described as taking hundreds of hours of practice (full-time for three+ months) to pull off. As a result, the Bag randomizer is no longer needed. A highlight video uploaded to Youtube showcases loads of spin moves, half a secret grade, a downstacking challenge, and more, all done in invisible mode (and with the TGM randomizer). As QM so aptly puts it: "You've never seen Tetris like this before...and neither have I". 2015-09-15: QM uploads a video showing MasterO performed in Phantom Mania, without the Playing Forever method (and as mentioned above, using the TGM randomizer). 2015-10-17: QM clears Phantom Mania for the second time, earning another MasterM plus passing the credit roll, again without the Playing Forever method and with the TGM randomizer. 2 Tetrises short of GM 2016-03-07: QM achieves Grand Master in Phantom Mania...and the camera suffers a memory card error, losing the footage. Seriously. 2016-03-09: It is done. Invisible Shirase next?