I've never played the Tetris Grandmaster games. The only games I have played recently are Tetris Party (DS), Tetris Axis, and Tetris Ultimate for the 3ds. (I played the original Gameboy version and Tetris Plus for PS1 many years ago). The Master Mode in Party starts out with the tetriminos appearing at the bottom of the screen, and as the difficulty level rises, the amount of time given to react decreases. However, as long as you keep the tetrimino moving left or right or keep rotating it, it basically takes the same amount of time to lock in place whether you're on level 1 or 15. You just have to be careful not to hesitate or let the tetrimono stay in one place too long. But in Axis however, in addition to being given less time to react when the tetrimino appears on screen, you are given less time to move the piece around and rotate it as the level rises, making it much harder. Most of the time playing Tetris Party I could complete Master Endless off, and if I did die, it would be on level 14 or 15. So basically I could get pretty far. But then if I played Master on Axis, I would get wiped out at only level 7 or 8. Is this the same as Death Mode on TGM? (I've seen where it has a Master and a Death mode). (BTW, the Master Mode in Tetris Ultimate is a joke. Level 15 is just as easy as level 1. I can complete it with ease).