Placing a piece : 0 to 500 points

Filling lines across :
Single : 50 points
Double : 150 points
Triple : 400 points
Quadruple 'tetris' : 900 points

Starting on round 4 : 20,000 points
Starting on round 7 : 40,000 points

The end of round bonus depends on how many incomplete lines the player has at the bottom of the well when the round ends :
0 lines : 2,100 points
2 lines : 1,710 points
3 lines : 1,530 points
4 lines : 1,360 points
5 lines : 1,200 points
6 lines : 1,050 points
7 lines : 910 points
8 lines : 780 points
9 lines : 660 points
10 lines : 550 points
11 lines : 450 points
12 lines : 360 points
13 lines : 280 points
14 lines : 210 points
15 lines : 150 points
16 lines : 100 points
17 lines : 60 points
18 lines : 30 points
19 lines : 10 points

While on attract mode, if you pull player 1 joystick to the left and player 2 joystick to the right simultaneously the demo steps into its next phase. If you repeat it a few times the music will start playing...

If you tap the 'rotate' buttons when the guy in the doorway is doing his 'victory dance' a hook will reach out from the side and drag him away by the neck. If you do it when he is just dropping down to do the 'Cossack Kicks', he'll dodge the hook the first time, but get caught by it on the return.

0.31 [Zsolt Vasvari]

SETUP:
- To start a game, press the ROTATE button.

Artwork available

WIP:
- 0.146: Couriersud improved sound emulation for POKEY chip. Changed audio emulation to emulate borrow 3 clock delay and proper channel reset. New frequency only becomes effective after the counter hits 0. Emulation also treats counters as 8 bit counters which are linked now instead of monolytic 16 bit counters. Fixed high pass filters for POKEY. Added POKEYN device based on modern device. Fixed random lfsr generation. Consolidated polynom code. Removed legacy left overs from pokey code. Added a internal pokey_channel class. Convert all remaining drivers to use the modern pokey device.
- 15th May 2011: Mr. Do - One simple update, that you can just grab the LAY file for is Atari Tetris, I added a view for the cocktail version, which has a vertical screen.
- 6th November 2010: f205v dumped Tetris (bootleg set 3).
- 0.133u1: Renamed (atetcktl) to (atetrisc), (atetckt2) to (atetrisc2) and (atetrsb2) to (atetrisb2).
- 0.123u4: RasnAckeR improved dipswitch definitions, added DIP locations and simplified input ports in Atari Tetris. Added dipswitches 'Freeze Step' and 2x 'Unused'.
- 0.122u6: Svante Gerhard added save state support to Atari Tetris. Aaron Giles fixed up memory maps and clocks according to schematics.
- 22nd April 2007: Mr. Do - One more artwork from the BYOAC purchase and vectored by Jcroach: Tetris by Atari.
- 0.114u2: Aaron Giles and Couriersud added more accurate video timing to most of the Atari 68000-era games. The parameters are from published specs, not derived. The board uses an SOS-2 chip to generate video signals. Changed VSync to 59.922743 Hz.
- 6th June 2006: Guru - Tetris (Atari Games 1988) bootleg arrived from Korea today. Thanks to GP-Lee.
- 0.105u4: Fixed rom names.
- 0.79u1: Kevin Eshbach added clone Tetris (bootleg set 2). Changed description of clone '(bootleg)' to '(bootleg set 1)'.
- 31st January 2004: Kevin Eshbach submitted an addition of a new Atari Tetris bootleg.
- 0.76u2: Some input fixes in Tetris (Atari) [HowardC]. Changed 8-way Joystick to 4-way.
- 0.53: Aaron Giles fixed the remaining issues in Slapstic emulation, Tetris now uses the slapstic code. Changed M6502 CPU1 and the 2x Pokey clock speed to 1789772 Hz and fixed cpu1 rom ($0) address to $10000.
- 2nd September 2000: Brad Oliver abstracted the dirty handling from Centipede and sped up Atari Tetris.
- 0.34b8: Zsolt Vasvari added Tetris (Cocktail set 1). Changed description of clone 'Tetris (Cocktail version)' to 'Tetris (Cocktail set 2)'. Renamed (atetcktl) to (atetckt2).
- 0.33b7: Changed description of 'Tetris (Atari)' to 'Tetris (set 1)' and clones '(Atari) (alternate)' to '(set 2)', '(Atari) (Cocktail version)' to '(Cocktail version)' and '(Atari) (bootleg)' to '(bootleg)'.
- 0.31: Zsolt Vasvari added Tetris (Atari) (Atari Games 1988) and clones (alternate), (bootleg) and (Cocktail version). Control: To start a game, press the ROTATE button.

LEVELS: 99 (endless - game stops counting levels after 99th)

Other Emulators:
* FB Alpha
* JAE

Romset: 128 kb / 2 files / 49.5 zip