Hard Drop on Twitter: "Wiki Wednesday! Bravo? Level step? GRS? IRS? Some acronyms and terms within the Tetris Grandmaster series can be confusing if you aren't familiar with them. Don't worry, the
File:MAN TGM 18.330.jpg - Wikimedia Commons
File:MAN TGM 18-250 cisterna za vodu VS 2.jpg - Wikimedia Commons
Tetris The Grand Master 4 The Masters of Round - TetrisWiki