TAUS provides the in-game statistics:

• DHT: The drought. The number of pieces since the last line
• BRN: The burn. The number of lines cleared since the last tetris
• EFF: The efficiency. The score per lines ignoring the level multiplier. Individual clears have score per lines of: 40 for a single, 50 for a double, 100 for a triple, 300 for a tetris
• TRT: The tetris rate. The percentage of lines cleared that were tetrises
• TRNS: The transition score. The score achieved when leaving the starting level

TAUS provides the post-game statistics:

• EFF LOG: A chart for the EFF progression through the game with each bar corresponding to the EFF of 10 lines cleared. The EFF presented is not the cumulative EFF to that point, but the EFF of the 10 lines in isolation. It tracks each line clear separately, so if you have cleared 8 lines and then clear a tetris that is considered two lines followed by two more lines

The mod also allows skipping the legal screen.

• Database match: Tetris (USA)
• Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
• File SHA-1: 77747840541BFC62A28A5957692A98C550BD6B2B
• File CRC32: 6D72C53A
• ROM SHA-1: FD9079CB5E8479EB06D93C2AE5175BFCE871746A
• ROM CRC32: 1394F57E
• Database match: Tetris (Europe)
• Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
• File SHA-1: 817169B819AADAAE52CCE6B3D8D2FC24270566D7
• File CRC32: 8319B091
• ROM SHA-1: 66883B9EDDEC933E36B6BFF0479CEFD2434FFB40
• ROM CRC32: FDFF80D5