@Unoriginal_Fox I agree

tetrominos having more/less than four pieces should be illegal

okay, so the small text might need some explaining; the P stands for placed, as in dropped; it was originally a D but it could've been confused for the skull and crossbones (which was meant to stand for game over; like that's how the pieces look when you get a game over) i know it might not look like a skull and crossbones; it was such a tiny area to try to make that graphic in :V

the white square is the line(s) clear graphic
everything below the Z (green ala Sega/Arika) piece is part of the Bio Tetris Mode.... which... has these.
the colors beyond the green piece graphic on the right are from the Random Color option, and only appear when that option is set (It does what it says, when set to on; each piece is given a random color amongst those 10 color choices; this would mean pieces could have a chance in showing up in their SRS (Super Rotation System)/Guideline colors (I-cyan, J-blue, L-orange, O-yellow, S-green, T-purple, and Z-red); you could have and see O pieces in many colors during a level!

but I think I might have a possible contender for a sheet name that's not so overly long; so I sent that sheet name (more shorter than... the long horse that was the original submitted sheet name) over as a revision just now

as for what original submitted sheet name I was referring to; well, if you'd like to know (but also sorry), it was "Tetriminos (Tetris), and Pentaminoes, Trominoes, Domino, Monomino (Bio Tetris)" (Bio Tetris as to indicate that the pieces below the 7 usual tetrimino shapes only appeared in the Bio Tetris game mode) but don't worry, this isn't the name change. It's way shorter than my original submitted title, as to incorporate elements from that original title without running the name space into the ground.