User:Arcorann/Inspirations for DTET

As per http://dtet.zui.jp/dtet/aim.htm:

• PC-98 Tetris:
  • Low-delay play
  • Lives system (probably)
• Magical Tetris Challenge:
  • Multiple piece previews
• Tetris 64:
  • 180-degree rotation
  • Moving pieces during line clear delay
• Tetris DX:
  • Symmetric left/right states
  • ARE cancel
• Tetris (Game Boy):
  • Rotation/movement buffering