It's Tetris... with physics!
1 Player[/]
There are 2 game modes on 1 Player: Normal and Stack.
Normal
Score 999,999 points.
Stack
Get the maximum score possible.
2 Players
There are 2 game modes on 2 Players: Stack and Invade.
Invade
Same as Stack, but you can send Tetrominoes to your opponent by knocking them sideways to his/her board. Highest score wins.
Options
You can adjust the volume, change the color, upscale, and enter full screen.
Scale
1 - 160x144 (1 player), 272x144 (2 players), Native resolution, Works with any screen resolution.
2 - 320x288 (1 player), 544x288 (2 players), 1 Player works with a resolution of 400x300, 2 Players work with a resolution of 640x400.
3 - 480x432 (1 player), 816x432 (2 players), 1 Player works with a resolution of 480x360, 2 Players require a minimum resolution of 1024x768 (4:3) or 848x480 (16:9).
4 - 640x576 (1 player), 1088x576 (2 players), 1 Player fits on a 576i PAL/SECAM CRT TV, 2 Players require a minimum resolution of 1152x864 (4:3) or 1280x720 (16:9, 720p).
5 - 800x720 (1 player), 1360x720 (2 players), 1 Player requires a minimum resolution of 1024x768 (4:3) or 1280x720 (16:9, 720p), 2 Players require a minimum resolution of 1600x1200 (4:3) or 1366x768 (16:9).
6 - 960x864 (1 player), 1632x864 (2 players), 1 Player requires a minimum resolution of 1152x864 (4:3) or 1600x900 (16:9, 900p), 2 Players require a minimum resolution of 2048x1536 (4:3) or 1920x1080 (16:9, 1080p).
7 - 1120x1008 (1 player), 1904x1008 (2 players), 1 Player requires a minimum resolution of 1280x1024 (4:3) or 1920x1080 (16:9, 1080p), 2 Players require a minimum resolution of 2048x1536 (4:3) or 1920x1080 (16:9, 1080p).
If your monitor's native resolution is less 1360x768 or less, the max scale setting can still be achieved with an interlaced resolution of 1920x1080 (16:9, 1080i).
All screen scale settings can be used in 4K (3840x2160) and higher.
Full screen resolutions
8x - 1280x1152 (1 player), 2176x1152 (2 players), 1 Player requires a resolution of 1600x1200 (4:3) or 1360x768 (16:9), 2 Players require a resolution of 2560x1440 (16:9 1440p).
9x - 1440x1296 (1 player), 2448x1296 (2 players), 1 Player requires a resolution of 2048x1536 (4:3) or 2560x1440 (16:9, 1440p), 2 Players require a resolution of 2560x1440 (16:9 1440p).
10x - 1600x1440 (1 player), 2720x1440 (2 players), 1 Player requires a resolution of 2048x1536 (4:3) or 2560x1440 (16:9, 1440p), 2 Players require a resolution of 3840x2160 (16:9, 2160p, 4K).
12x - 1920x1728 (1 player), 3264x1728 (2 players), 1 Player requires a resolution of 2048x1536 (4:3) or 3840x2160 (16:9, 2160p, 4K), 2 Players require 4K.
14x - 3808x2016 (2 players), Requires 4K.
15x - 2400x2160 (1 player), 4080x2160 (2 players), 1 Player requires 4K, 2 Players require a resolution of 5120x2880 (5K).
19x - 5168x2736 (2 players), Requires 5K.
20x - 3200x2880 (1 Player), 5440x2880 (2 players), 1 player requires 5K, 2 Players require a resolution of 7680x4320 (8K)
Any higher requires 8K. To see 8K, use 4 4K monitors, they are expensive you know.
I say, leave scaling alone and just TAS the game.