From Sega Retro

ACE magazine #35 (August 1990) lists a UK retail price of £39.99 and claims it's "out now". - Hivebrain 14:08, 10 July 2011 (CDT)

Along with that (I have no idea, sorry): is there evidence that Nintendo v Tengen was responsible for Sega pulling back the license? Bullet Proof Software had the license in Japan; the Nintendo case only holds in the US... though BPS is interesting; I thought they only held the computer license at least until 1994 when they made "Super Bombliss", an explosive (literally) take on Tetris for the Super Famicom... or am I wrong? - Andlabs 19:55, 5 September 2011 (CDT)

The list goes on

1989	taito_b.c	tetrist	tetris	Sega	Tetris (Japan, B-System, YM2610)
1989	taito_b.c	tetrista	tetris	Sega	Tetris (Japan, B-System, YM2203)
from my conversion of MAME's info XML file... this is Sega's Tetris running on Taito's B System hardware (they list one of the System 16A ones as their parent). MAME source has no explanation. I have no clue if it's legit; does anyone know?
maybe I should make this a forum post but eh - Andlabs 17:54, 15 November 2011 (CST)
the latest MAME svn confirms their legitimacy
1988    taito_b.c       tetrist tetris  Sega    Tetris (Japan, Taito B-System, Nastar Conversion Kit)
1988    taito_b.c       tetrista        tetris  Sega    Tetris (Japan, Taito B-System, Master of Weapon Conversion Kit)
1988    taito_h.c       tetristh        tetris  Sega    Tetris (Japan, Taito H-System)
- Andlabs (talk) 23:55, 21 November 2013 (CST)