The wiki has very little info on Shimizu Tetris, so can someone who knows more about it help me out? True or False? - The game's speed curve had multiple levels like Sega Tetris (Easy/Medium/Hard/etc.) that maxed out at 1G, but also had 3 special "modes" where gravity was fixed at 2G, 3G, and 20G. - It uses Sega Rotation with no wallkicks. I've also heard that there are a number of other modes besides gravity that uniquely affect gameplay. I've heard various scattered mentions of doubles mode (like TGM2 - how wide is it?) and pentomino pieces () but no other info at all. Other questions: - Is there a ceiling? - Is there IRS? (20G without IRS would be very difficult.) - How many next pieces are there? The wiki says "0-2" so I'm guessing this either depends on mode or is adjustable. - Is there a shadow/ghost piece? The only videos I can find show off 20G which obviously never shows a ghost. - What are the timings in the game? (DAS delay/speed, ARE, lock delay, line clear delay) Any help would be appreciated.