Tetris The Grand Master (series)
Tetris The Grand Master is a series of Tetris games developed by Arika.
Gameplay
Rotation system
- Main article: TGM rotation
The TGM series uses various rotation system but the primary one is the Arika Rotation System (ARS). TGM1 and TGM2 both use ARS. TGM3 has two distinct systems used in Classic (extended ARS) and World (SRS). TGM ACE uses three systems SRS, ARS1 and ARS2.
ARS inherits its tetromino colors and rotation rules from Sega's 1988 arcade version of Tetris, and expands it by implementing wall kicks, which allow pieces to rotate in tight spots.
Initial Rotation System
Initial rotation system or IRS is a ability to rotate a piece before it appears by holding a rotate button during the appearance delay.
Delayed Auto Shift Delay
Delayed auto shift delay (横溜め時間 yokotame jikan) or DAS is the number of frames of delayed auto shift. Holding left or right for the specified amount of frames, horizontal movement will be 1G.
Lock Delay
Lock delay (接着時間/固定時間 setchaku jikan or kotei jikan) is the number of frames until a piece locks down and is no longer movable. If the altitude of the piece changes, the lock delay countdown will be reset.
Line Clear Delay
Line clear delay (消去時間 shoukyo jikan) is the animation frames of line-clearing animations. during this time, the game accepts input for DAS, IRS, and IHS.
Appearance Delay
Appearance delay (出現時間 shutsugen jikan) or ARE is the number of frames between a last block locked to a new block appears. During this delay, players can input actions for DAS charging and IRS.
Time attack
20G build
20G is when it takes one frame for the block to hit the bottom of the play field.
See:
- http://www13.plala.or.jp/TETRiS_TGM/kouza/5.htm
- http://www13.plala.or.jp/TETRiS_TGM/kouza/6.htm
- http://www13.plala.or.jp/TETRiS_TGM/kouza/7.htm
Invisible credits roll
See:
- http://www13.plala.or.jp/TETRiS_TGM/kouza/16.htm (bottom page)
Wall kick analysis
Synchro analysis
In a frame, actions effect in order 'Rotation -> Move -> Drop'.
If player rotates without DAS to left
- Rotate Block
- No Move
- Drop Block
If player rotates with DAS to left
- Rotate Block
- Move Left Block
- Drop Block
More advanced technics are described in http://www13.plala.or.jp/TETRiS_TGM/kouza/12.htm
Miscellaneous tips
- 4 directional Arcade Stick limitation need
Basic block control flow
- Check the Initial Rotation
- A new block appears
- loop until a block locked.
- Check a block actions. (Actions effect following the below sequence in a frame.)
- Rotation
- Horizontal Move
- Vertical Drop
- Check to lock a block
- Check a block actions. (Actions effect following the below sequence in a frame.)
Development
Games
Tetris The Grand Master
Tetris The Grand Master or TGM was released for arcades in 1998.
Tetris The Absolute The Grand Master 2
Tetris The Absolute The Grand Master 2 or T.A. was released for arcades in October of 2000.
Tetris The Absolute The Grand Master 2 PLUS
Tetris The Absolute The Grand Master 2 PLUS or TAP was released for arcades in December of 2000 as a free upgrade to Tetris The Absolute The Grand Master 2.
Tetris The Grand Master 3 Terror-Instinct
Tetris The Grand Master 3 Terror-Instinct or Ti was released for arcades in Japan in 2005.
Tetris The Grand Master Ace
Tetris The Grand Master Ace was released alongside the Xbox 360 in Japan as a launch title.
Tetris The Grand Master 4 The Masters of Round
Tetris The Grand Master 4 The Masters of Round or TMOR is an unreleased sequel for arcades.
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